Merge branch 'master' into update-release-checklist

CHANGES.rst

@@ -2,6 +2,24 @@
 Changelog (Pillow)
 ==================
 
+5.3.0 (unreleased)
+------------------
+
+- Add three-color support to ImageOps.colorize #3242
+  [tsennott]
+
+- Tests: Add LA to TGA test modes #3222
+  [danpla]
+
+- Skip outline if the draw operation fills with the same colour #2922
+  [radarhere]
+
+- Flake8 fixes #3173
+  [radarhere]
+
+- Avoid deprecated 'U' mode when opening files #2187
+  [jdufresne]
+
 5.2.0 (2018-07-01)
 ------------------
 

RELEASING.md

@@ -4,7 +4,7 @@
 
 Released quarterly on the first day of January, April, July, October.
 
-* [ ] Open a release ticket e.g. https://github.com/python-pillow/Pillow/issues/1174
+* [ ] Open a release ticket e.g. https://github.com/python-pillow/Pillow/issues/3154
 * [ ] Develop and prepare release in ``master`` branch.
 * [ ] Check [Travis CI](https://travis-ci.org/python-pillow/Pillow) and [AppVeyor CI](https://ci.appveyor.com/project/python-pillow/Pillow) to confirm passing tests in ``master`` branch.
 * [ ] Check that all of the wheel builds [Pillow Wheel Builder](https://github.com/python-pillow/pillow-wheels) pass the tests in Travis CI.
@@ -13,8 +13,8 @@ Released quarterly on the first day of January, April, July, October.
 * [ ] Run pre-release check via `make release-test` in a freshly cloned repo.
 * [ ] Create branch and tag for release e.g.:
 ```
-    $ git branch 2.9.x
-    $ git tag 2.9.0
+    $ git branch 5.2.x
+    $ git tag 5.2.0
     $ git push --all
     $ git push --tags
 ```
@@ -23,7 +23,7 @@ Released quarterly on the first day of January, April, July, October.
     $ make sdist
 ```
 * [ ] Create [binary distributions](#binary-distributions)
-* [ ] Upload all binaries and source distributions with ``twine upload dist/Pillow-4.1.0-*``
+* [ ] Upload all binaries and source distributions e.g. ``twine upload dist/Pillow-5.2.0-*``
 * [ ] In compliance with [PEP 440](https://www.python.org/dev/peps/pep-0440/), append `.dev0` to version identifier in `src/PIL/_version.py`
 
 ## Point Release
@@ -32,17 +32,17 @@ Released as needed for security, installation or critical bug fixes.
 
 * [ ] Make necessary changes in ``master`` branch.
 * [ ] Update `CHANGES.rst`.
-* [ ] Cherry pick individual commits from ``master`` branch to release branch e.g. ``2.9.x``.
-* [ ] Check [Travis CI](https://travis-ci.org/python-pillow/Pillow) to confirm passing tests in release branch e.g. ``2.9.x``.
+* [ ] Cherry pick individual commits from ``master`` branch to release branch e.g. ``5.2.x``.
+* [ ] Check [Travis CI](https://travis-ci.org/python-pillow/Pillow) to confirm passing tests in release branch e.g. ``5.2.x``.
 * [ ] Check out release branch e.g.:
 ```
-    git checkout -t remotes/origin/2.9.x
+    git checkout -t remotes/origin/5.2.x
 ```
 * [ ] In compliance with [PEP 440](https://www.python.org/dev/peps/pep-0440/), update version identifier in `src/PIL/_version.py`
 * [ ] Run pre-release check via `make release-test`.
 * [ ] Create tag for release e.g.:
 ```
-    $ git tag 2.9.1
+    $ git tag 5.2.1
     $ git push --tags
 ```
 * [ ] Create source distributions e.g.:
@@ -99,8 +99,8 @@ Released as needed privately to individual vendors for critical security-related
 
 ## Publicize Release
 
-* [ ] Announce release availability via [Twitter](https://twitter.com/pythonpillow) e.g. https://twitter.com/aclark4life/status/583366798302691328.
+* [ ] Announce release availability via [Twitter](https://twitter.com/pythonpillow) e.g. https://twitter.com/PythonPillow/status/1013789184354603010
 
 ## Documentation
 
-* [ ] Make sure the default version for Read the Docs is the latest release version, e.g. ``3.1.x`` rather than ``latest``: https://readthedocs.org/projects/pillow/versions/
+* [ ] Make sure the default version for Read the Docs is the latest release version, i.e. ``5.2.0`` rather than ``latest`` e.g. https://pillow.readthedocs.io/en/5.2.x/

Tests/helper.py

@@ -153,7 +153,8 @@ class PillowTestCase(unittest.TestCase):
                     pass
             raise e
 
-    def assert_image_similar_tofile(self, a, filename, epsilon, msg=None, mode=None):
+    def assert_image_similar_tofile(self, a, filename, epsilon, msg=None,
+                                    mode=None):
         with Image.open(filename) as img:
             if mode:
                 img = img.convert(mode)
@@ -191,6 +192,16 @@ class PillowTestCase(unittest.TestCase):
     def assert_not_all_same(self, items, msg=None):
         self.assertFalse(items.count(items[0]) == len(items), msg)
 
+    def assert_tuple_approx_equal(self, actuals, targets, threshold, msg):
+        """Tests if actuals has values within threshold from targets"""
+
+        value = True
+        for i, target in enumerate(targets):
+            value *= (target - threshold <= actuals[i] <= target + threshold)
+
+        self.assertTrue(value,
+                        msg + ': ' + repr(actuals) + ' != ' + repr(targets))
+
     def skipKnownBadTest(self, msg=None, platform=None,
                          travis=None, interpreter=None):
         # Skip if platform/travis matches, and
@@ -246,7 +257,8 @@ class PillowLeakTestCase(PillowTestCase):
         mem = getrusage(RUSAGE_SELF).ru_maxrss
         if sys.platform == 'darwin':
             # man 2 getrusage:
-            #     ru_maxrss    the maximum resident set size utilized (in bytes).
+            #     ru_maxrss
+            # This is the maximum resident set size utilized (in bytes).
             return mem / 1024  # Kb
         else:
             # linux

Tests/test_color_lut.py

@@ -27,8 +27,8 @@ class TestColorLut3DCoreAPI(PillowTestCase):
                 g / float(size2D-1) if size2D != 1 else 0,
             ][:channels]
             for b in range(size3D)
-                for g in range(size2D)
-                    for r in range(size1D)
+            for g in range(size2D)
+            for r in range(size1D)
         ]
         return (
             channels, size1D, size2D, size3D,
@@ -38,112 +38,123 @@ class TestColorLut3DCoreAPI(PillowTestCase):
         im = Image.new('RGB', (10, 10), 0)
 
         with self.assertRaisesRegex(ValueError, "filter"):
-            im.im.color_lut_3d('RGB', Image.CUBIC,
-                *self.generate_identity_table(3, 3))
+            im.im.color_lut_3d('RGB',
+                               Image.CUBIC,
+                               *self.generate_identity_table(3, 3))
 
         with self.assertRaisesRegex(ValueError, "image mode"):
-            im.im.color_lut_3d('wrong', Image.LINEAR,
-                *self.generate_identity_table(3, 3))
+            im.im.color_lut_3d('wrong',
+                               Image.LINEAR,
+                               *self.generate_identity_table(3, 3))
 
         with self.assertRaisesRegex(ValueError, "table_channels"):
-            im.im.color_lut_3d('RGB', Image.LINEAR,
-                *self.generate_identity_table(5, 3))
+            im.im.color_lut_3d('RGB',
+                               Image.LINEAR,
+                               *self.generate_identity_table(5, 3))
 
         with self.assertRaisesRegex(ValueError, "table_channels"):
-            im.im.color_lut_3d('RGB', Image.LINEAR,
-                *self.generate_identity_table(1, 3))
+            im.im.color_lut_3d('RGB',
+                               Image.LINEAR,
+                               *self.generate_identity_table(1, 3))
 
         with self.assertRaisesRegex(ValueError, "table_channels"):
-            im.im.color_lut_3d('RGB', Image.LINEAR,
-                *self.generate_identity_table(2, 3))
+            im.im.color_lut_3d('RGB',
+                               Image.LINEAR,
+                               *self.generate_identity_table(2, 3))
 
         with self.assertRaisesRegex(ValueError, "Table size"):
-            im.im.color_lut_3d('RGB', Image.LINEAR,
-                *self.generate_identity_table(3, (1, 3, 3)))
+            im.im.color_lut_3d('RGB',
+                               Image.LINEAR,
+                               *self.generate_identity_table(3, (1, 3, 3)))
 
         with self.assertRaisesRegex(ValueError, "Table size"):
-            im.im.color_lut_3d('RGB', Image.LINEAR,
-                *self.generate_identity_table(3, (66, 3, 3)))
+            im.im.color_lut_3d('RGB',
+                               Image.LINEAR,
+                               *self.generate_identity_table(3, (66, 3, 3)))
 
         with self.assertRaisesRegex(ValueError, r"size1D \* size2D \* size3D"):
-            im.im.color_lut_3d('RGB', Image.LINEAR,
-                3, 2, 2, 2, [0, 0, 0] * 7)
+            im.im.color_lut_3d('RGB',
+                               Image.LINEAR,
+                               3, 2, 2, 2, [0, 0, 0] * 7)
 
         with self.assertRaisesRegex(ValueError, r"size1D \* size2D \* size3D"):
-            im.im.color_lut_3d('RGB', Image.LINEAR,
-                3, 2, 2, 2, [0, 0, 0] * 9)
+            im.im.color_lut_3d('RGB',
+                               Image.LINEAR,
+                               3, 2, 2, 2, [0, 0, 0] * 9)
 
         with self.assertRaises(TypeError):
-            im.im.color_lut_3d('RGB', Image.LINEAR,
-                3, 2, 2, 2, [0, 0, "0"] * 8)
+            im.im.color_lut_3d('RGB',
+                               Image.LINEAR,
+                               3, 2, 2, 2, [0, 0, "0"] * 8)
 
         with self.assertRaises(TypeError):
-            im.im.color_lut_3d('RGB', Image.LINEAR,
-                3, 2, 2, 2, 16)
+            im.im.color_lut_3d('RGB',
+                               Image.LINEAR,
+                               3, 2, 2, 2, 16)
 
     def test_correct_args(self):
         im = Image.new('RGB', (10, 10), 0)
 
         im.im.color_lut_3d('RGB', Image.LINEAR,
-            *self.generate_identity_table(3, 3))
+                           *self.generate_identity_table(3, 3))
 
         im.im.color_lut_3d('CMYK', Image.LINEAR,
-            *self.generate_identity_table(4, 3))
+                           *self.generate_identity_table(4, 3))
 
         im.im.color_lut_3d('RGB', Image.LINEAR,
-            *self.generate_identity_table(3, (2, 3, 3)))
+                           *self.generate_identity_table(3, (2, 3, 3)))
 
         im.im.color_lut_3d('RGB', Image.LINEAR,
-            *self.generate_identity_table(3, (65, 3, 3)))
+                           *self.generate_identity_table(3, (65, 3, 3)))
 
         im.im.color_lut_3d('RGB', Image.LINEAR,
-            *self.generate_identity_table(3, (3, 65, 3)))
+                           *self.generate_identity_table(3, (3, 65, 3)))
 
         im.im.color_lut_3d('RGB', Image.LINEAR,
-            *self.generate_identity_table(3, (3, 3, 65)))
+                           *self.generate_identity_table(3, (3, 3, 65)))
 
     def test_wrong_mode(self):
         with self.assertRaisesRegex(ValueError, "wrong mode"):
             im = Image.new('L', (10, 10), 0)
             im.im.color_lut_3d('RGB', Image.LINEAR,
-                *self.generate_identity_table(3, 3))
+                               *self.generate_identity_table(3, 3))
 
         with self.assertRaisesRegex(ValueError, "wrong mode"):
             im = Image.new('RGB', (10, 10), 0)
             im.im.color_lut_3d('L', Image.LINEAR,
-                *self.generate_identity_table(3, 3))
+                               *self.generate_identity_table(3, 3))
 
         with self.assertRaisesRegex(ValueError, "wrong mode"):
             im = Image.new('L', (10, 10), 0)
             im.im.color_lut_3d('L', Image.LINEAR,
-                *self.generate_identity_table(3, 3))
+                               *self.generate_identity_table(3, 3))
 
         with self.assertRaisesRegex(ValueError, "wrong mode"):
             im = Image.new('RGB', (10, 10), 0)
             im.im.color_lut_3d('RGBA', Image.LINEAR,
-                *self.generate_identity_table(3, 3))
+                               *self.generate_identity_table(3, 3))
 
         with self.assertRaisesRegex(ValueError, "wrong mode"):
             im = Image.new('RGB', (10, 10), 0)
             im.im.color_lut_3d('RGB', Image.LINEAR,
-                *self.generate_identity_table(4, 3))
+                               *self.generate_identity_table(4, 3))
 
     def test_correct_mode(self):
         im = Image.new('RGBA', (10, 10), 0)
         im.im.color_lut_3d('RGBA', Image.LINEAR,
-            *self.generate_identity_table(3, 3))
+                           *self.generate_identity_table(3, 3))
 
         im = Image.new('RGBA', (10, 10), 0)
         im.im.color_lut_3d('RGBA', Image.LINEAR,
-            *self.generate_identity_table(4, 3))
+                           *self.generate_identity_table(4, 3))
 
         im = Image.new('RGB', (10, 10), 0)
         im.im.color_lut_3d('HSV', Image.LINEAR,
-            *self.generate_identity_table(3, 3))
+                           *self.generate_identity_table(3, 3))
 
         im = Image.new('RGB', (10, 10), 0)
         im.im.color_lut_3d('RGBA', Image.LINEAR,
-            *self.generate_identity_table(4, 3))
+                           *self.generate_identity_table(4, 3))
 
     def test_identities(self):
         g = Image.linear_gradient('L')
@@ -154,12 +165,12 @@ class TestColorLut3DCoreAPI(PillowTestCase):
         for size in [2, 3, 5, 7, 11, 16, 17]:
             self.assert_image_equal(im, im._new(
                 im.im.color_lut_3d('RGB', Image.LINEAR,
-                    *self.generate_identity_table(3, size))))
+                                   *self.generate_identity_table(3, size))))
 
         # Not so fast
         self.assert_image_equal(im, im._new(
             im.im.color_lut_3d('RGB', Image.LINEAR,
-                *self.generate_identity_table(3, (2, 2, 65)))))
+                               *self.generate_identity_table(3, (2, 2, 65)))))
 
     def test_identities_4_channels(self):
         g = Image.linear_gradient('L')
@@ -170,7 +181,7 @@ class TestColorLut3DCoreAPI(PillowTestCase):
         self.assert_image_equal(
             Image.merge('RGBA', (im.split()*2)[:4]),
             im._new(im.im.color_lut_3d('RGBA', Image.LINEAR,
-                *self.generate_identity_table(4, 17))))
+                                       *self.generate_identity_table(4, 17))))
 
     def test_copy_alpha_channel(self):
         g = Image.linear_gradient('L')
@@ -180,7 +191,7 @@ class TestColorLut3DCoreAPI(PillowTestCase):
 
         self.assert_image_equal(im, im._new(
             im.im.color_lut_3d('RGBA', Image.LINEAR,
-                *self.generate_identity_table(3, 17))))
+                               *self.generate_identity_table(3, 17))))
 
     def test_channels_order(self):
         g = Image.linear_gradient('L')
@@ -191,13 +202,13 @@ class TestColorLut3DCoreAPI(PillowTestCase):
         self.assert_image_equal(
             Image.merge('RGB', im.split()[::-1]),
             im._new(im.im.color_lut_3d('RGB', Image.LINEAR,
-                3, 2, 2, 2, [
-                    0, 0, 0,  0, 0, 1,
-                    0, 1, 0,  0, 1, 1,
+                    3, 2, 2, 2, [
+                        0, 0, 0,  0, 0, 1,
+                        0, 1, 0,  0, 1, 1,
 
-                    1, 0, 0,  1, 0, 1,
-                    1, 1, 0,  1, 1, 1,
-                ])))
+                        1, 0, 0,  1, 0, 1,
+                        1, 1, 0,  1, 1, 1,
+                    ])))
 
     def test_overflow(self):
         g = Image.linear_gradient('L')
@@ -205,14 +216,14 @@ class TestColorLut3DCoreAPI(PillowTestCase):
                                  g.transpose(Image.ROTATE_180)])
 
         transformed = im._new(im.im.color_lut_3d('RGB', Image.LINEAR,
-                3, 2, 2, 2,
-                [
-                    -1, -1, -1,   2, -1, -1,
-                    -1,  2, -1,   2,  2, -1,
+                              3, 2, 2, 2,
+                              [
+                                  -1, -1, -1,   2, -1, -1,
+                                  -1,  2, -1,   2,  2, -1,
 
-                    -1, -1,  2,   2, -1,  2,
-                    -1,  2,  2,   2,  2,  2,
-                ])).load()
+                                  -1, -1,  2,   2, -1,  2,
+                                  -1,  2,  2,   2,  2,  2,
+                              ])).load()
         self.assertEqual(transformed[0, 0], (0, 0, 255))
         self.assertEqual(transformed[50, 50], (0, 0, 255))
         self.assertEqual(transformed[255, 0], (0, 255, 255))
@@ -223,14 +234,14 @@ class TestColorLut3DCoreAPI(PillowTestCase):
         self.assertEqual(transformed[205, 205], (255, 255, 0))
 
         transformed = im._new(im.im.color_lut_3d('RGB', Image.LINEAR,
-                3, 2, 2, 2,
-                [
-                    -3, -3, -3,   5, -3, -3,
-                    -3,  5, -3,   5,  5, -3,
+                              3, 2, 2, 2,
+                              [
+                                  -3, -3, -3,   5, -3, -3,
+                                  -3,  5, -3,   5,  5, -3,
 
-                    -3, -3,  5,   5, -3,  5,
-                    -3,  5,  5,   5,  5,  5,
-                ])).load()
+                                  -3, -3,  5,   5, -3,  5,
+                                  -3,  5,  5,   5,  5,  5,
+                              ])).load()
         self.assertEqual(transformed[0, 0], (0, 0, 255))
         self.assertEqual(transformed[50, 50], (0, 0, 255))
         self.assertEqual(transformed[255, 0], (0, 255, 255))
@@ -366,22 +377,23 @@ class TestColorLut3DFilter(PillowTestCase):
         lut = ImageFilter.Color3DLUT(
             (3, 4, 5), array('f', [0, 0, 0, 0] * (3 * 4 * 5)),
             channels=4, target_mode='YCbCr', _copy_table=False)
-        self.assertEqual(repr(lut),
+        self.assertEqual(
+            repr(lut),
             "<Color3DLUT from array size=3x4x5 channels=4 target_mode=YCbCr>")
 
 
 class TestGenerateColorLut3D(PillowTestCase):
     def test_wrong_channels_count(self):
         with self.assertRaisesRegex(ValueError, "3 or 4 output channels"):
-            ImageFilter.Color3DLUT.generate(5, channels=2,
-                callback=lambda r, g, b: (r, g, b))
+            ImageFilter.Color3DLUT.generate(
+                5, channels=2, callback=lambda r, g, b: (r, g, b))
 
         with self.assertRaisesRegex(ValueError, "should have either channels"):
             ImageFilter.Color3DLUT.generate(5, lambda r, g, b: (r, g, b, r))
 
         with self.assertRaisesRegex(ValueError, "should have either channels"):
-            ImageFilter.Color3DLUT.generate(5, channels=4,
-                callback=lambda r, g, b: (r, g, b))
+            ImageFilter.Color3DLUT.generate(
+                5, channels=4, callback=lambda r, g, b: (r, g, b))
 
     def test_3_channels(self):
         lut = ImageFilter.Color3DLUT.generate(5, lambda r, g, b: (r, g, b))
@@ -392,13 +404,14 @@ class TestGenerateColorLut3D(PillowTestCase):
             1.0, 0.0, 0.0,  0.0, 0.25, 0.0,  0.25, 0.25, 0.0,  0.5, 0.25, 0.0])
 
     def test_4_channels(self):
-        lut = ImageFilter.Color3DLUT.generate(5, channels=4,
-            callback=lambda r, g, b: (b, r, g, (r+g+b) / 2))
+        lut = ImageFilter.Color3DLUT.generate(
+            5, channels=4, callback=lambda r, g, b: (b, r, g, (r+g+b) / 2))
         self.assertEqual(tuple(lut.size), (5, 5, 5))
         self.assertEqual(lut.name, "Color 3D LUT")
         self.assertEqual(lut.table[:24], [
             0.0, 0.0, 0.0, 0.0,  0.0, 0.25, 0.0, 0.125,  0.0, 0.5, 0.0, 0.25,
-            0.0, 0.75, 0.0, 0.375,  0.0, 1.0, 0.0, 0.5,  0.0, 0.0, 0.25, 0.125])
+            0.0, 0.75, 0.0, 0.375,  0.0, 1.0, 0.0, 0.5,  0.0, 0.0, 0.25, 0.125
+        ])
 
     def test_apply(self):
         lut = ImageFilter.Color3DLUT.generate(5, lambda r, g, b: (r, g, b))

Tests/test_file_eps.py

@@ -1,7 +1,6 @@
 from helper import unittest, PillowTestCase, hopper
 
 from PIL import Image, EpsImagePlugin
-from PIL._util import py3
 import io
 
 # Our two EPS test files (they are identical except for their bounding boxes)
@@ -196,41 +195,15 @@ class TestFileEps(PillowTestCase):
         self.assertEqual(t.readline().strip('\r\n'), 'baz', ending)
         self.assertEqual(t.readline().strip('\r\n'), 'bif', ending)
 
-    def _test_readline_stringio(self, test_string, ending):
-        # check all the freaking line endings possible
-        try:
-            import StringIO
-        except ImportError:
-            # don't skip, it skips everything in the parent test
-            return
-        t = StringIO.StringIO(test_string)
+    def _test_readline_io_psfile(self, test_string, ending):
+        f = io.BytesIO(test_string.encode('latin-1'))
+        t = EpsImagePlugin.PSFile(f)
         self._test_readline(t, ending)
 
-    def _test_readline_io(self, test_string, ending):
-        if py3:
-            t = io.StringIO(test_string)
-        else:
-            t = io.StringIO(unicode(test_string))
-        self._test_readline(t, ending)
-
-    def _test_readline_file_universal(self, test_string, ending):
-        f = self.tempfile('temp.txt')
-        with open(f, 'wb') as w:
-            if py3:
-                w.write(test_string.encode('UTF-8'))
-            else:
-                w.write(test_string)
-
-        with open(f, 'rU') as t:
-            self._test_readline(t, ending)
-
     def _test_readline_file_psfile(self, test_string, ending):
         f = self.tempfile('temp.txt')
         with open(f, 'wb') as w:
-            if py3:
-                w.write(test_string.encode('UTF-8'))
-            else:
-                w.write(test_string)
+            w.write(test_string.encode('latin-1'))
 
         with open(f, 'rb') as r:
             t = EpsImagePlugin.PSFile(r)
@@ -239,29 +212,12 @@ class TestFileEps(PillowTestCase):
     def test_readline(self):
         # check all the freaking line endings possible from the spec
         # test_string = u'something\r\nelse\n\rbaz\rbif\n'
-        line_endings = ['\r\n', '\n']
-        not_working_endings = ['\n\r', '\r']
+        line_endings = ['\r\n', '\n', '\n\r', '\r']
         strings = ['something', 'else', 'baz', 'bif']
 
         for ending in line_endings:
             s = ending.join(strings)
-            # Native Python versions will pass these endings.
-            # self._test_readline_stringio(s, ending)
-            # self._test_readline_io(s, ending)
-            # self._test_readline_file_universal(s, ending)
-
-            self._test_readline_file_psfile(s, ending)
-
-        for ending in not_working_endings:
-            # these only work with the PSFile, while they're in spec,
-            # they're not likely to be used
-            s = ending.join(strings)
-
-            # Native Python versions may fail on these endings.
-            # self._test_readline_stringio(s, ending)
-            # self._test_readline_io(s, ending)
-            # self._test_readline_file_universal(s, ending)
-
+            self._test_readline_io_psfile(s, ending)
             self._test_readline_file_psfile(s, ending)
 
     def test_open_eps(self):

Tests/test_file_gif.py

@@ -402,7 +402,8 @@ class TestFileGif(PillowTestCase):
 
     def test_comment(self):
         im = Image.open(TEST_GIF)
-        self.assertEqual(im.info['comment'], b"File written by Adobe Photoshop\xa8 4.0")
+        self.assertEqual(im.info['comment'],
+                         b"File written by Adobe Photoshop\xa8 4.0")
 
         out = self.tempfile('temp.gif')
         im = Image.new('L', (100, 100), '#000')

Tests/test_file_jpeg.py

@@ -364,7 +364,6 @@ class TestFileJpeg(PillowTestCase):
         with self.assertRaises(IOError):
             im.load()
 
-
     def _n_qtables_helper(self, n, test_file):
         im = Image.open(test_file)
         f = self.tempfile('temp.jpg')

Tests/test_file_libtiff.py

@@ -31,7 +31,7 @@ class LibTiffTestCase(PillowTestCase):
 
         try:
             self.assertEqual(im._compression, 'group4')
-        except:
+        except AttributeError:
             print("No _compression")
             print(dir(im))
 
@@ -126,7 +126,8 @@ class TestFileLibTiff(LibTiffTestCase):
             im.tile[0][:3], ('tiff_adobe_deflate', (0, 0, 278, 374), 0))
         im.load()
 
-        self.assert_image_equal_tofile(im, 'Tests/images/tiff_adobe_deflate.png')
+        self.assert_image_equal_tofile(im,
+                                       'Tests/images/tiff_adobe_deflate.png')
 
     def test_write_metadata(self):
         """ Test metadata writing through libtiff """
@@ -194,7 +195,7 @@ class TestFileLibTiff(LibTiffTestCase):
         for tag in im.tag_v2:
             try:
                 del(core_items[tag])
-            except:
+            except KeyError:
                 pass
 
         # Type codes:
@@ -217,7 +218,8 @@ class TestFileLibTiff(LibTiffTestCase):
             if info.length == 0:
                 new_ifd[tag] = tuple(values[info.type] for _ in range(3))
             else:
-                new_ifd[tag] = tuple(values[info.type] for _ in range(info.length))
+                new_ifd[tag] = tuple(values[info.type]
+                                     for _ in range(info.length))
 
         # Extra samples really doesn't make sense in this application.
         del(new_ifd[338])
@@ -525,7 +527,7 @@ class TestFileLibTiff(LibTiffTestCase):
                 f.write(src.read())
 
         im = Image.open(tmpfile)
-        count = im.n_frames
+        im.n_frames
         im.close()
         try:
             os.remove(tmpfile)  # Windows PermissionError here!
@@ -578,10 +580,14 @@ class TestFileLibTiff(LibTiffTestCase):
 
         self.assertEqual(im.mode, "RGBA")
         self.assertEqual(im.size, (100, 40))
-        self.assertEqual(im.tile, [('tiff_lzw', (0, 0, 100, 40), 0, ('RGBa;16N', 'tiff_lzw', False))])
+        self.assertEqual(
+            im.tile,
+            [('tiff_lzw', (0, 0, 100, 40), 0, ('RGBa;16N', 'tiff_lzw', False))]
+        )
         im.load()
 
-        self.assert_image_equal_tofile(im, "Tests/images/tiff_16bit_RGBa_target.png")
+        self.assert_image_equal_tofile(
+            im, "Tests/images/tiff_16bit_RGBa_target.png")
 
     def test_gimp_tiff(self):
         # Read TIFF JPEG images from GIMP [@PIL168]
@@ -607,7 +613,8 @@ class TestFileLibTiff(LibTiffTestCase):
         im = Image.open("Tests/images/copyleft.tiff")
         self.assertEqual(im.mode, 'RGB')
 
-        self.assert_image_equal_tofile(im, "Tests/images/copyleft.png", mode='RGB')
+        self.assert_image_equal_tofile(im, "Tests/images/copyleft.png",
+                                       mode='RGB')
 
     def test_lzw(self):
         im = Image.open("Tests/images/hopper_lzw.tif")

Tests/test_file_pdf.py

@@ -20,7 +20,8 @@ class TestFilePdf(PillowTestCase):
         self.assertTrue(os.path.isfile(outfile))
         self.assertGreater(os.path.getsize(outfile), 0)
         with PdfParser.PdfParser(outfile) as pdf:
-            if kwargs.get("append_images", False) or kwargs.get("append", False):
+            if kwargs.get("append_images", False) or \
+               kwargs.get("append", False):
                 self.assertGreater(len(pdf.pages), 1)
             else:
                 self.assertGreater(len(pdf.pages), 0)
@@ -116,7 +117,9 @@ class TestFilePdf(PillowTestCase):
 
     def test_pdf_open(self):
         # fail on a buffer full of null bytes
-        self.assertRaises(PdfParser.PdfFormatError, PdfParser.PdfParser, buf=bytearray(65536))
+        self.assertRaises(
+            PdfParser.PdfFormatError,
+            PdfParser.PdfParser, buf=bytearray(65536))
 
         # make an empty PDF object
         with PdfParser.PdfParser() as empty_pdf:
@@ -153,7 +156,10 @@ class TestFilePdf(PillowTestCase):
         im = hopper("RGB")
         temp_dir = tempfile.mkdtemp()
         try:
-            self.assertRaises(IOError, im.save, os.path.join(temp_dir, "nonexistent.pdf"), append=True)
+            self.assertRaises(IOError,
+                              im.save,
+                              os.path.join(temp_dir, "nonexistent.pdf"),
+                              append=True)
         finally:
             os.rmdir(temp_dir)
 
@@ -204,7 +210,8 @@ class TestFilePdf(PillowTestCase):
         # append two images
         mode_CMYK = hopper("CMYK")
         mode_P = hopper("P")
-        mode_CMYK.save(pdf_filename, append=True, save_all=True, append_images=[mode_P])
+        mode_CMYK.save(pdf_filename,
+                       append=True, save_all=True, append_images=[mode_P])
 
         # open the PDF again, check pages and info again
         with PdfParser.PdfParser(pdf_filename) as pdf:
@@ -219,7 +226,9 @@ class TestFilePdf(PillowTestCase):
 
     def test_pdf_info(self):
         # make a PDF file
-        pdf_filename = self.helper_save_as_pdf("RGB", title="title", author="author", subject="subject", keywords="keywords", creator="creator", producer="producer")
+        pdf_filename = self.helper_save_as_pdf(
+            "RGB", title="title", author="author", subject="subject",
+            keywords="keywords", creator="creator", producer="producer")
 
         # open it, check pages and info
         with PdfParser.PdfParser(pdf_filename) as pdf:

Tests/test_file_png.py

@@ -355,7 +355,8 @@ class TestFilePng(PillowTestCase):
         broken_crc_chunk_data = chunk_data[:-1] + b'q'  # break CRC
 
         image_data = HEAD + broken_crc_chunk_data + TAIL
-        self.assertRaises(SyntaxError, PngImagePlugin.PngImageFile, BytesIO(image_data))
+        self.assertRaises(SyntaxError, PngImagePlugin.PngImageFile,
+                          BytesIO(image_data))
 
         ImageFile.LOAD_TRUNCATED_IMAGES = True
         try:
@@ -371,7 +372,8 @@ class TestFilePng(PillowTestCase):
 
         ImageFile.LOAD_TRUNCATED_IMAGES = True
         try:
-            self.assertRaises(SyntaxError, PngImagePlugin.PngImageFile, BytesIO(image_data))
+            self.assertRaises(SyntaxError, PngImagePlugin.PngImageFile,
+                              BytesIO(image_data))
         finally:
             ImageFile.LOAD_TRUNCATED_IMAGES = False
 

Tests/test_file_tga.py

@@ -13,7 +13,7 @@ _TGA_DIR_COMMON = os.path.join(_TGA_DIR, "common")
 
 class TestFileTga(PillowTestCase):
 
-    _MODES = ("L", "P", "RGB", "RGBA")
+    _MODES = ("L", "LA", "P", "RGB", "RGBA")
     _ORIGINS = ("tl", "bl")
 
     _ORIGIN_TO_ORIENTATION = {

Tests/test_file_tiff.py

@@ -444,7 +444,8 @@ class TestFileTiff(PillowTestCase):
             for im in ims:
                 yield im
         mp = io.BytesIO()
-        im.save(mp, format="TIFF", save_all=True, append_images=imGenerator(ims))
+        im.save(mp, format="TIFF", save_all=True,
+                append_images=imGenerator(ims))
 
         mp.seek(0, os.SEEK_SET)
         reread = Image.open(mp)

Tests/test_file_webp_animated.py

@@ -83,7 +83,8 @@ class TestFileWebpAnimation(PillowTestCase):
 
         temp_file1 = self.tempfile("temp.webp")
         frame1.copy().save(temp_file1,
-            save_all=True, append_images=[frame2], lossless=True)
+                           save_all=True, append_images=[frame2],
+                           lossless=True)
         check(temp_file1)
 
         # Tests appending using a generator
@@ -92,7 +93,8 @@ class TestFileWebpAnimation(PillowTestCase):
                 yield im
         temp_file2 = self.tempfile("temp_generator.webp")
         frame1.copy().save(temp_file2,
-            save_all=True, append_images=imGenerator([frame2]), lossless=True)
+                           save_all=True, append_images=imGenerator([frame2]),
+                           lossless=True)
         check(temp_file2)
 
     def test_timestamp_and_duration(self):

Tests/test_font_leaks.py

@@ -16,7 +16,8 @@ class TestTTypeFontLeak(PillowLeakTestCase):
         self._test_leak(lambda: draw.text((0, 0), "some text "*1024,  # ~10k
                                           font=font, fill="black"))
 
-    @unittest.skipIf(not features.check('freetype2'), "Test requires freetype2")
+    @unittest.skipIf(not features.check('freetype2'),
+                     "Test requires freetype2")
     def test_leak(self):
         ttype = ImageFont.truetype('Tests/fonts/FreeMono.ttf', 20)
         self._test_font(ttype)

Tests/test_image_access.py

@@ -294,7 +294,8 @@ int main(int argc, char* argv[])
         compiler = ccompiler.new_compiler()
         compiler.add_include_dir(sysconfig.get_python_inc())
 
-        libdir = sysconfig.get_config_var('LIBDIR') or sysconfig.get_python_inc().replace('include', 'libs')
+        libdir = (sysconfig.get_config_var('LIBDIR') or
+                  sysconfig.get_python_inc().replace('include', 'libs'))
         print(libdir)
         compiler.add_library_dir(libdir)
         objects = compiler.compile(['embed_pil.c'])

Tests/test_image_array.py

@@ -15,9 +15,11 @@ class TestImageArray(PillowTestCase):
         self.assertEqual(test("L"), (3, (100, 128), '|u1', 12800))
 
         # FIXME: wrong?
-        self.assertEqual(test("I"), (3, (100, 128), Image._ENDIAN + 'i4', 51200))
+        self.assertEqual(test("I"), (3, (100, 128),
+                         Image._ENDIAN + 'i4', 51200))
         # FIXME: wrong?
-        self.assertEqual(test("F"), (3, (100, 128), Image._ENDIAN + 'f4', 51200))
+        self.assertEqual(test("F"), (3, (100, 128),
+                         Image._ENDIAN + 'f4', 51200))
 
         self.assertEqual(test("LA"), (3, (100, 128, 2), '|u1', 25600))
         self.assertEqual(test("RGB"), (3, (100, 128, 3), '|u1', 38400))

Tests/test_image_convert.py

@@ -67,13 +67,13 @@ class TestImageConvert(PillowTestCase):
 
         f = self.tempfile('temp.png')
 
-        l = im.convert('L')
-        self.assertEqual(l.info['transparency'], 0)  # undone
-        l.save(f)
+        im_l = im.convert('L')
+        self.assertEqual(im_l.info['transparency'], 0)  # undone
+        im_l.save(f)
 
-        rgb = im.convert('RGB')
-        self.assertEqual(rgb.info['transparency'], (0, 0, 0))  # undone
-        rgb.save(f)
+        im_rgb = im.convert('RGB')
+        self.assertEqual(im_rgb.info['transparency'], (0, 0, 0))  # undone
+        im_rgb.save(f)
 
     # ref https://github.com/python-pillow/Pillow/issues/664
 
@@ -83,12 +83,12 @@ class TestImageConvert(PillowTestCase):
         im.info['transparency'] = 128
 
         # Act
-        rgba = im.convert('RGBA')
+        im_rgba = im.convert('RGBA')
 
         # Assert
-        self.assertNotIn('transparency', rgba.info)
+        self.assertNotIn('transparency', im_rgba.info)
         # https://github.com/python-pillow/Pillow/issues/2702
-        self.assertEqual(rgba.palette, None)
+        self.assertEqual(im_rgba.palette, None)
 
     def test_trns_l(self):
         im = hopper('L')
@@ -96,19 +96,20 @@ class TestImageConvert(PillowTestCase):
 
         f = self.tempfile('temp.png')
 
-        rgb = im.convert('RGB')
-        self.assertEqual(rgb.info['transparency'], (128, 128, 128))  # undone
-        rgb.save(f)
+        im_rgb = im.convert('RGB')
+        self.assertEqual(im_rgb.info['transparency'],
+                         (128, 128, 128))  # undone
+        im_rgb.save(f)
 
-        p = im.convert('P')
-        self.assertIn('transparency', p.info)
-        p.save(f)
+        im_p = im.convert('P')
+        self.assertIn('transparency', im_p.info)
+        im_p.save(f)
 
-        p = self.assert_warning(
+        im_p = self.assert_warning(
             UserWarning,
             im.convert, 'P', palette=Image.ADAPTIVE)
-        self.assertNotIn('transparency', p.info)
-        p.save(f)
+        self.assertNotIn('transparency', im_p.info)
+        im_p.save(f)
 
     def test_trns_RGB(self):
         im = hopper('RGB')
@@ -116,23 +117,35 @@ class TestImageConvert(PillowTestCase):
 
         f = self.tempfile('temp.png')
 
-        l = im.convert('L')
-        self.assertEqual(l.info['transparency'], l.getpixel((0, 0)))  # undone
-        l.save(f)
+        im_l = im.convert('L')
+        self.assertEqual(im_l.info['transparency'],
+                         im_l.getpixel((0, 0)))  # undone
+        im_l.save(f)
 
-        p = im.convert('P')
-        self.assertIn('transparency', p.info)
-        p.save(f)
+        im_p = im.convert('P')
+        self.assertIn('transparency', im_p.info)
+        im_p.save(f)
 
-        p = im.convert('RGBA')
-        self.assertNotIn('transparency', p.info)
-        p.save(f)
+        im_rgba = im.convert('RGBA')
+        self.assertNotIn('transparency', im_rgba.info)
+        im_rgba.save(f)
 
-        p = self.assert_warning(
+        im_p = self.assert_warning(
             UserWarning,
             im.convert, 'P', palette=Image.ADAPTIVE)
-        self.assertNotIn('transparency', p.info)
-        p.save(f)
+        self.assertNotIn('transparency', im_p.info)
+        im_p.save(f)
+
+    def test_gif_with_rgba_palette_to_p(self):
+        # See https://github.com/python-pillow/Pillow/issues/2433
+        im = Image.open('Tests/images/hopper.gif')
+        im.info['transparency'] = 255
+        im.load()
+        self.assertEqual(im.palette.mode, 'RGBA')
+        im_p = im.convert('P')
+
+        # Should not raise ValueError: unrecognized raw mode
+        im_p.load()
 
     def test_p_la(self):
         im = hopper('RGBA')
@@ -191,7 +204,8 @@ class TestImageConvert(PillowTestCase):
             if converted_im.mode == 'RGB':
                 self.assert_image_similar(converted_im, target, 3)
             else:
-                self.assert_image_similar(converted_im, target.getchannel(0), 1)
+                self.assert_image_similar(converted_im,
+                                          target.getchannel(0), 1)
 
         matrix_convert('RGB')
         matrix_convert('L')

Tests/test_image_resample.py

@@ -245,8 +245,8 @@ class CoreResampleAlphaCorrectTest(PillowTestCase):
         for y in range(i.size[1]):
             used_colors = {px[x, y][0] for x in range(i.size[0])}
             self.assertEqual(256, len(used_colors),
-                            'All colors should present in resized image. '
-                            'Only {} on {} line.'.format(len(used_colors), y))
+                             'All colors should present in resized image. '
+                             'Only {} on {} line.'.format(len(used_colors), y))
 
     @unittest.skip("current implementation isn't precise enough")
     def test_levels_rgba(self):
@@ -288,10 +288,14 @@ class CoreResampleAlphaCorrectTest(PillowTestCase):
     def test_dirty_pixels_rgba(self):
         case = self.make_dirty_case('RGBA', (255, 255, 0, 128), (0, 0, 255, 0))
         self.run_dirty_case(case.resize((20, 20), Image.BOX), (255, 255, 0))
-        self.run_dirty_case(case.resize((20, 20), Image.BILINEAR), (255, 255, 0))
-        self.run_dirty_case(case.resize((20, 20), Image.HAMMING), (255, 255, 0))
-        self.run_dirty_case(case.resize((20, 20), Image.BICUBIC), (255, 255, 0))
-        self.run_dirty_case(case.resize((20, 20), Image.LANCZOS), (255, 255, 0))
+        self.run_dirty_case(case.resize((20, 20), Image.BILINEAR),
+                            (255, 255, 0))
+        self.run_dirty_case(case.resize((20, 20), Image.HAMMING),
+                            (255, 255, 0))
+        self.run_dirty_case(case.resize((20, 20), Image.BICUBIC),
+                            (255, 255, 0))
+        self.run_dirty_case(case.resize((20, 20), Image.LANCZOS),
+                            (255, 255, 0))
 
     def test_dirty_pixels_la(self):
         case = self.make_dirty_case('LA', (255, 128), (0, 0))
@@ -367,23 +371,28 @@ class CoreResampleCoefficientsTest(PillowTestCase):
         im = Image.new('RGBA', (1280, 1280), (0x20, 0x40, 0x60, 0xff))
         histogram = im.resize((256, 256), Image.BICUBIC).histogram()
 
-        self.assertEqual(histogram[0x100 * 0 + 0x20], 0x10000)  # first channel
-        self.assertEqual(histogram[0x100 * 1 + 0x40], 0x10000)  # second channel
-        self.assertEqual(histogram[0x100 * 2 + 0x60], 0x10000)  # third channel
-        self.assertEqual(histogram[0x100 * 3 + 0xff], 0x10000)  # fourth channel
+        # first channel
+        self.assertEqual(histogram[0x100 * 0 + 0x20], 0x10000)
+        # second channel
+        self.assertEqual(histogram[0x100 * 1 + 0x40], 0x10000)
+        # third channel
+        self.assertEqual(histogram[0x100 * 2 + 0x60], 0x10000)
+        # fourth channel
+        self.assertEqual(histogram[0x100 * 3 + 0xff], 0x10000)
 
 
 class CoreResampleBoxTest(PillowTestCase):
     def test_wrong_arguments(self):
         im = hopper()
-        for resample in (Image.NEAREST, Image.BOX, Image.BILINEAR, Image.HAMMING,
-                Image.BICUBIC, Image.LANCZOS):
+        for resample in (Image.NEAREST, Image.BOX, Image.BILINEAR,
+                         Image.HAMMING, Image.BICUBIC, Image.LANCZOS):
             im.resize((32, 32), resample, (0, 0, im.width, im.height))
             im.resize((32, 32), resample, (20, 20, im.width, im.height))
             im.resize((32, 32), resample, (20, 20, 20, 100))
             im.resize((32, 32), resample, (20, 20, 100, 20))
 
-            with self.assertRaisesRegex(TypeError, "must be sequence of length 4"):
+            with self.assertRaisesRegex(TypeError,
+                                        "must be sequence of length 4"):
                 im.resize((32, 32), resample, (im.width, im.height))
 
             with self.assertRaisesRegex(ValueError, "can't be negative"):

Tests/test_image_resize.py

@@ -39,15 +39,15 @@ class TestImagingCoreResize(PillowTestCase):
             self.assertEqual(r.im.bands, im.im.bands)
 
     def test_reduce_filters(self):
-        for f in [Image.NEAREST, Image.BOX, Image.BILINEAR, Image.HAMMING,
-                Image.BICUBIC, Image.LANCZOS]:
+        for f in [Image.NEAREST, Image.BOX, Image.BILINEAR,
+                  Image.HAMMING, Image.BICUBIC, Image.LANCZOS]:
             r = self.resize(hopper("RGB"), (15, 12), f)
             self.assertEqual(r.mode, "RGB")
             self.assertEqual(r.size, (15, 12))
 
     def test_enlarge_filters(self):
-        for f in [Image.NEAREST, Image.BOX, Image.BILINEAR, Image.HAMMING,
-                Image.BICUBIC, Image.LANCZOS]:
+        for f in [Image.NEAREST, Image.BOX, Image.BILINEAR,
+                  Image.HAMMING, Image.BICUBIC, Image.LANCZOS]:
             r = self.resize(hopper("RGB"), (212, 195), f)
             self.assertEqual(r.mode, "RGB")
             self.assertEqual(r.size, (212, 195))
@@ -66,8 +66,8 @@ class TestImagingCoreResize(PillowTestCase):
         }
         samples['dirty'].putpixel((1, 1), 128)
 
-        for f in [Image.NEAREST, Image.BOX, Image.BILINEAR, Image.HAMMING,
-                Image.BICUBIC, Image.LANCZOS]:
+        for f in [Image.NEAREST, Image.BOX, Image.BILINEAR,
+                  Image.HAMMING, Image.BICUBIC, Image.LANCZOS]:
             # samples resized with current filter
             references = {
                 name: self.resize(ch, (4, 4), f)
@@ -90,8 +90,8 @@ class TestImagingCoreResize(PillowTestCase):
                         self.assert_image_equal(ch, references[channels[i]])
 
     def test_enlarge_zero(self):
-        for f in [Image.NEAREST, Image.BOX, Image.BILINEAR, Image.HAMMING,
-                Image.BICUBIC, Image.LANCZOS]:
+        for f in [Image.NEAREST, Image.BOX, Image.BILINEAR,
+                  Image.HAMMING, Image.BICUBIC, Image.LANCZOS]:
             r = self.resize(Image.new('RGB', (0, 0), "white"), (212, 195), f)
             self.assertEqual(r.mode, "RGB")
             self.assertEqual(r.size, (212, 195))

Tests/test_image_rotate.py

@@ -95,8 +95,9 @@ class TestImageRotate(PillowTestCase):
         im = hopper()
         self.rotate(im, im.mode, 45, center=(0, 0))
         self.rotate(im, im.mode, 45, translate=(im.size[0]/2, 0))
-        self.rotate(im, im.mode, 45, center=(0, 0), translate=(im.size[0]/2, 0))
-        
+        self.rotate(im, im.mode, 45, center=(0, 0),
+                    translate=(im.size[0]/2, 0))
+
     def test_rotate_no_fill(self):
         im = Image.new('RGB', (100, 100), 'green')
         target = Image.open('Tests/images/rotate_45_no_fill.png')

Tests/test_image_toqimage.py

@@ -43,8 +43,9 @@ class TestToQImage(PillowQtTestCase, PillowTestCase):
             if mode == '1':
                 # BW appears to not save correctly on QT4 and QT5
                 # kicks out errors on console:
-                # libpng warning: Invalid color type/bit depth combination in IHDR
-                # libpng error: Invalid IHDR data
+                #     libpng warning: Invalid color type/bit depth combination
+                #                     in IHDR
+                #     libpng error: Invalid IHDR data
                 continue
 
             # Test saving the file

Tests/test_imagecms.py

@@ -196,13 +196,13 @@ class TestImageCms(PillowTestCase):
         # not a linear luminance map. so L != 128:
         self.assertEqual(k, (137, 128, 128))
 
-        l = i_lab.getdata(0)
-        a = i_lab.getdata(1)
-        b = i_lab.getdata(2)
+        l_data = i_lab.getdata(0)
+        a_data = i_lab.getdata(1)
+        b_data = i_lab.getdata(2)
 
-        self.assertEqual(list(l), [137] * 100)
-        self.assertEqual(list(a), [128] * 100)
-        self.assertEqual(list(b), [128] * 100)
+        self.assertEqual(list(l_data), [137] * 100)
+        self.assertEqual(list(a_data), [128] * 100)
+        self.assertEqual(list(b_data), [128] * 100)
 
     def test_lab_color(self):
         psRGB = ImageCms.createProfile("sRGB")
@@ -286,53 +286,104 @@ class TestImageCms(PillowTestCase):
             self.assertEqual(truncate_tuple(tup1), truncate_tuple(tup2))
 
         self.assertEqual(p.attributes, 4294967296)
-        assert_truncated_tuple_equal(p.blue_colorant, ((0.14306640625, 0.06060791015625, 0.7140960693359375), (0.1558847490315394, 0.06603820639433387, 0.06060791015625)))
-        assert_truncated_tuple_equal(p.blue_primary, ((0.14306641366715667, 0.06060790921083026, 0.7140960805782015), (0.15588475410450106, 0.06603820408959558, 0.06060790921083026)))
+        assert_truncated_tuple_equal(
+            p.blue_colorant,
+            ((0.14306640625, 0.06060791015625, 0.7140960693359375),
+             (0.1558847490315394, 0.06603820639433387, 0.06060791015625)))
+        assert_truncated_tuple_equal(
+            p.blue_primary,
+            ((0.14306641366715667, 0.06060790921083026, 0.7140960805782015),
+             (0.15588475410450106, 0.06603820408959558, 0.06060790921083026)))
         assert_truncated_tuple_equal(p.chromatic_adaptation, (((1.04791259765625, 0.0229339599609375, -0.050201416015625), (0.02960205078125, 0.9904632568359375, -0.0170745849609375), (-0.009246826171875, 0.0150604248046875, 0.7517852783203125)), ((1.0267159024652783, 0.022470062342089134, 0.0229339599609375), (0.02951378324103937, 0.9875098886387147, 0.9904632568359375), (-0.012205438066465256, 0.01987915407854985, 0.0150604248046875))))
         self.assertIsNone(p.chromaticity)
-        self.assertEqual(p.clut, {0: (False, False, True), 1: (False, False, True), 2: (False, False, True), 3: (False, False, True)})
+        self.assertEqual(p.clut, {
+            0: (False, False, True),
+            1: (False, False, True),
+            2: (False, False, True),
+            3: (False, False, True)
+        })
         self.assertEqual(p.color_space, 'RGB')
         self.assertIsNone(p.colorant_table)
         self.assertIsNone(p.colorant_table_out)
         self.assertIsNone(p.colorimetric_intent)
         self.assertEqual(p.connection_space, 'XYZ ')
-        self.assertEqual(p.copyright, 'Copyright International Color Consortium, 2009')
-        self.assertEqual(p.creation_date, datetime.datetime(2009, 2, 27, 21, 36, 31))
+        self.assertEqual(p.copyright,
+                         'Copyright International Color Consortium, 2009')
+        self.assertEqual(p.creation_date,
+                         datetime.datetime(2009, 2, 27, 21, 36, 31))
         self.assertEqual(p.device_class, 'mntr')
-        assert_truncated_tuple_equal(p.green_colorant, ((0.3851470947265625, 0.7168731689453125, 0.097076416015625), (0.32119769927720654, 0.5978443449048152, 0.7168731689453125)))
-        assert_truncated_tuple_equal(p.green_primary, ((0.3851470888162112, 0.7168731974161346, 0.09707641738998518), (0.32119768793686687, 0.5978443567149709, 0.7168731974161346)))
+        assert_truncated_tuple_equal(
+            p.green_colorant,
+            ((0.3851470947265625, 0.7168731689453125, 0.097076416015625),
+             (0.32119769927720654, 0.5978443449048152, 0.7168731689453125)))
+        assert_truncated_tuple_equal(
+            p.green_primary,
+            ((0.3851470888162112, 0.7168731974161346, 0.09707641738998518),
+             (0.32119768793686687, 0.5978443567149709, 0.7168731974161346)))
         self.assertEqual(p.header_flags, 0)
         self.assertEqual(p.header_manufacturer, '\x00\x00\x00\x00')
         self.assertEqual(p.header_model, '\x00\x00\x00\x00')
-        self.assertEqual(p.icc_measurement_condition, {'backing': (0.0, 0.0, 0.0), 'flare': 0.0, 'geo': 'unknown', 'observer': 1, 'illuminant_type': 'D65'})
+        self.assertEqual(p.icc_measurement_condition, {
+            'backing': (0.0, 0.0, 0.0),
+            'flare': 0.0,
+            'geo': 'unknown',
+            'observer': 1,
+            'illuminant_type': 'D65'
+        })
         self.assertEqual(p.icc_version, 33554432)
         self.assertIsNone(p.icc_viewing_condition)
-        self.assertEqual(p.intent_supported, {0: (True, True, True), 1: (True, True, True), 2: (True, True, True), 3: (True, True, True)})
+        self.assertEqual(p.intent_supported, {
+            0: (True, True, True),
+            1: (True, True, True),
+            2: (True, True, True),
+            3: (True, True, True)
+        })
         self.assertTrue(p.is_matrix_shaper)
         self.assertEqual(p.luminance, ((0.0, 80.0, 0.0), (0.0, 1.0, 80.0)))
         self.assertIsNone(p.manufacturer)
-        assert_truncated_tuple_equal(p.media_black_point, ((0.012054443359375, 0.0124969482421875, 0.01031494140625), (0.34573304157549234, 0.35842450765864337, 0.0124969482421875)))
-        assert_truncated_tuple_equal(p.media_white_point, ((0.964202880859375, 1.0, 0.8249053955078125), (0.3457029219802284, 0.3585375327567059, 1.0)))
-        assert_truncated_tuple_equal((p.media_white_point_temperature,), (5000.722328847392,))
-        self.assertEqual(p.model, 'IEC 61966-2-1 Default RGB Colour Space - sRGB')
+        assert_truncated_tuple_equal(
+            p.media_black_point,
+            ((0.012054443359375, 0.0124969482421875, 0.01031494140625),
+             (0.34573304157549234, 0.35842450765864337, 0.0124969482421875)))
+        assert_truncated_tuple_equal(
+            p.media_white_point,
+            ((0.964202880859375, 1.0, 0.8249053955078125),
+             (0.3457029219802284, 0.3585375327567059, 1.0)))
+        assert_truncated_tuple_equal(
+            (p.media_white_point_temperature,),
+            (5000.722328847392,))
+        self.assertEqual(p.model,
+                         'IEC 61966-2-1 Default RGB Colour Space - sRGB')
         self.assertEqual(p.pcs, 'XYZ')
         self.assertIsNone(p.perceptual_rendering_intent_gamut)
-        self.assertEqual(p.product_copyright, 'Copyright International Color Consortium, 2009')
+        self.assertEqual(p.product_copyright,
+                         'Copyright International Color Consortium, 2009')
         self.assertEqual(p.product_desc, 'sRGB IEC61966-2-1 black scaled')
-        self.assertEqual(p.product_description, 'sRGB IEC61966-2-1 black scaled')
+        self.assertEqual(p.product_description,
+                         'sRGB IEC61966-2-1 black scaled')
         self.assertEqual(p.product_manufacturer, '')
-        self.assertEqual(p.product_model, 'IEC 61966-2-1 Default RGB Colour Space - sRGB')
-        self.assertEqual(p.profile_description, 'sRGB IEC61966-2-1 black scaled')
-        self.assertEqual(p.profile_id, b')\xf8=\xde\xaf\xf2U\xaexB\xfa\xe4\xca\x839\r')
-        assert_truncated_tuple_equal(p.red_colorant, ((0.436065673828125, 0.2224884033203125, 0.013916015625), (0.6484536316398539, 0.3308524880306778, 0.2224884033203125)))
-        assert_truncated_tuple_equal(p.red_primary, ((0.43606566581047446, 0.22248840582960838, 0.013916015621759925), (0.6484536250319214, 0.3308524944738204, 0.22248840582960838)))
+        self.assertEqual(
+            p.product_model, 'IEC 61966-2-1 Default RGB Colour Space - sRGB')
+        self.assertEqual(
+            p.profile_description, 'sRGB IEC61966-2-1 black scaled')
+        self.assertEqual(
+            p.profile_id, b')\xf8=\xde\xaf\xf2U\xaexB\xfa\xe4\xca\x839\r')
+        assert_truncated_tuple_equal(
+            p.red_colorant,
+            ((0.436065673828125, 0.2224884033203125, 0.013916015625),
+             (0.6484536316398539, 0.3308524880306778, 0.2224884033203125)))
+        assert_truncated_tuple_equal(
+            p.red_primary,
+            ((0.43606566581047446, 0.22248840582960838, 0.013916015621759925),
+             (0.6484536250319214, 0.3308524944738204, 0.22248840582960838)))
         self.assertEqual(p.rendering_intent, 0)
         self.assertIsNone(p.saturation_rendering_intent_gamut)
         self.assertIsNone(p.screening_description)
         self.assertIsNone(p.target)
         self.assertEqual(p.technology, 'CRT ')
         self.assertEqual(p.version, 2.0)
-        self.assertEqual(p.viewing_condition, 'Reference Viewing Condition in IEC 61966-2-1')
+        self.assertEqual(p.viewing_condition,
+                         'Reference Viewing Condition in IEC 61966-2-1')
         self.assertEqual(p.xcolor_space, 'RGB ')
 
     def test_profile_typesafety(self):
@@ -346,7 +397,8 @@ class TestImageCms(PillowTestCase):
         with self.assertRaises(TypeError):
             ImageCms.ImageCmsProfile(1).tobytes()
 
-    def assert_aux_channel_preserved(self, mode, transform_in_place, preserved_channel):
+    def assert_aux_channel_preserved(self, mode,
+                                     transform_in_place, preserved_channel):
         def create_test_image():
             # set up test image with something interesting in the tested aux
             # channel.
@@ -379,29 +431,35 @@ class TestImageCms(PillowTestCase):
         # create some transform, it doesn't matter which one
         source_profile = ImageCms.createProfile("sRGB")
         destination_profile = ImageCms.createProfile("sRGB")
-        t = ImageCms.buildTransform(source_profile, destination_profile, inMode=mode, outMode=mode)
+        t = ImageCms.buildTransform(
+            source_profile, destination_profile, inMode=mode, outMode=mode)
 
         # apply transform
         if transform_in_place:
             ImageCms.applyTransform(source_image, t, inPlace=True)
             result_image = source_image
         else:
-            result_image = ImageCms.applyTransform(source_image, t, inPlace=False)
+            result_image = ImageCms.applyTransform(
+                source_image, t, inPlace=False)
         result_image_aux = result_image.getchannel(preserved_channel)
 
         self.assert_image_equal(source_image_aux, result_image_aux)
 
     def test_preserve_auxiliary_channels_rgba(self):
-        self.assert_aux_channel_preserved(mode='RGBA', transform_in_place=False, preserved_channel='A')
+        self.assert_aux_channel_preserved(mode='RGBA',
+            transform_in_place=False, preserved_channel='A')
 
     def test_preserve_auxiliary_channels_rgba_in_place(self):
-        self.assert_aux_channel_preserved(mode='RGBA', transform_in_place=True, preserved_channel='A')
+        self.assert_aux_channel_preserved(mode='RGBA',
+            transform_in_place=True, preserved_channel='A')
 
     def test_preserve_auxiliary_channels_rgbx(self):
-        self.assert_aux_channel_preserved(mode='RGBX', transform_in_place=False, preserved_channel='X')
+        self.assert_aux_channel_preserved(mode='RGBX',
+            transform_in_place=False, preserved_channel='X')
 
     def test_preserve_auxiliary_channels_rgbx_in_place(self):
-        self.assert_aux_channel_preserved(mode='RGBX', transform_in_place=True, preserved_channel='X')
+        self.assert_aux_channel_preserved(mode='RGBX',
+            transform_in_place=True, preserved_channel='X')
 
     def test_auxiliary_channels_isolated(self):
         # test data in aux channels does not affect non-aux channels
@@ -422,20 +480,29 @@ class TestImageCms(PillowTestCase):
                     source_profile = ImageCms.createProfile(src_format[1])
                     destination_profile = ImageCms.createProfile(dst_format[1])
                     source_image = src_format[3]
-                    test_transform = ImageCms.buildTransform(source_profile, destination_profile, inMode=src_format[0], outMode=dst_format[0])
+                    test_transform = ImageCms.buildTransform(
+                        source_profile, destination_profile,
+                        inMode=src_format[0], outMode=dst_format[0])
 
                     # test conversion from aux-ful source
                     if transform_in_place:
                         test_image = source_image.copy()
-                        ImageCms.applyTransform(test_image, test_transform, inPlace=True)
+                        ImageCms.applyTransform(
+                            test_image, test_transform, inPlace=True)
                     else:
-                        test_image = ImageCms.applyTransform(source_image, test_transform, inPlace=False)
+                        test_image = ImageCms.applyTransform(
+                            source_image, test_transform, inPlace=False)
 
                     # reference conversion from aux-less source
-                    reference_transform = ImageCms.buildTransform(source_profile, destination_profile, inMode=src_format[2], outMode=dst_format[2])
-                    reference_image = ImageCms.applyTransform(source_image.convert(src_format[2]), reference_transform)
+                    reference_transform = ImageCms.buildTransform(
+                        source_profile, destination_profile,
+                        inMode=src_format[2], outMode=dst_format[2])
+                    reference_image = ImageCms.applyTransform(
+                        source_image.convert(src_format[2]),
+                        reference_transform)
 
-                    self.assert_image_equal(test_image.convert(dst_format[2]), reference_image)
+                    self.assert_image_equal(test_image.convert(dst_format[2]),
+                                            reference_image)
 
 
 if __name__ == '__main__':

Tests/test_imagecolor.py

@@ -31,7 +31,8 @@ class TestImageColor(PillowTestCase):
 
         # case insensitivity
         self.assertEqual(ImageColor.getrgb("#DEF"), ImageColor.getrgb("#def"))
-        self.assertEqual(ImageColor.getrgb("#CDEF"), ImageColor.getrgb("#cdef"))
+        self.assertEqual(ImageColor.getrgb("#CDEF"),
+                         ImageColor.getrgb("#cdef"))
         self.assertEqual(ImageColor.getrgb("#DEFDEF"),
                          ImageColor.getrgb("#defdef"))
         self.assertEqual(ImageColor.getrgb("#CDEFCDEF"),
@@ -80,18 +81,23 @@ class TestImageColor(PillowTestCase):
 
         self.assertEqual((255, 0, 0), ImageColor.getrgb("hsv(0,100%,100%)"))
         self.assertEqual((255, 0, 0), ImageColor.getrgb("hsv(360,100%,100%)"))
-        self.assertEqual((0, 255, 255), ImageColor.getrgb("hsv(180,100%,100%)"))
+        self.assertEqual((0, 255, 255),
+                         ImageColor.getrgb("hsv(180,100%,100%)"))
 
         # alternate format
         self.assertEqual(ImageColor.getrgb("hsb(0,100%,50%)"),
                          ImageColor.getrgb("hsv(0,100%,50%)"))
 
         # floats
-        self.assertEqual((254, 3, 3), ImageColor.getrgb("hsl(0.1,99.2%,50.3%)"))
-        self.assertEqual((255, 0, 0), ImageColor.getrgb("hsl(360.,100.0%,50%)"))
+        self.assertEqual((254, 3, 3),
+                         ImageColor.getrgb("hsl(0.1,99.2%,50.3%)"))
+        self.assertEqual((255, 0, 0),
+                         ImageColor.getrgb("hsl(360.,100.0%,50%)"))
 
-        self.assertEqual((253, 2, 2), ImageColor.getrgb("hsv(0.1,99.2%,99.3%)"))
-        self.assertEqual((255, 0, 0), ImageColor.getrgb("hsv(360.,100.0%,100%)"))
+        self.assertEqual((253, 2, 2),
+                         ImageColor.getrgb("hsv(0.1,99.2%,99.3%)"))
+        self.assertEqual((255, 0, 0),
+                         ImageColor.getrgb("hsv(360.,100.0%,100%)"))
 
         # case insensitivity
         self.assertEqual(ImageColor.getrgb("RGB(255,0,0)"),

Tests/test_imagedraw.py

@@ -576,6 +576,47 @@ class TestImageDraw(PillowTestCase):
         draw.textsize("\n")
         draw.textsize("test\n")
 
+    def test_same_color_outline(self):
+        # Prepare shape
+        x0, y0 = 5, 5
+        x1, y1 = 5, 50
+        x2, y2 = 95, 50
+        x3, y3 = 95, 5
+
+        s = ImageDraw.Outline()
+        s.move(x0, y0)
+        s.curve(x1, y1, x2, y2, x3, y3)
+        s.line(x0, y0)
+
+        # Begin
+        for mode in ["RGB", "L"]:
+            for fill, outline in [
+                ["red", None],
+                ["red", "red"],
+                ["red", "#f00"]
+            ]:
+                for operation, args in {
+                    'chord':[BBOX1, 0, 180],
+                    'ellipse':[BBOX1],
+                    'shape':[s],
+                    'pieslice':[BBOX1, -90, 45],
+                    'polygon':[[(18, 30), (85, 30), (60, 72)]],
+                    'rectangle':[BBOX1]
+                }.items():
+                    # Arrange
+                    im = Image.new(mode, (W, H))
+                    draw = ImageDraw.Draw(im)
+
+                    # Act
+                    draw_method = getattr(draw, operation)
+                    args += [fill, outline]
+                    draw_method(*args)
+
+                    # Assert
+                    expected = ("Tests/images/imagedraw_outline"
+                                "_{}_{}.png".format(operation, mode))
+                    self.assert_image_similar(im, Image.open(expected), 1)
+
 
 if __name__ == '__main__':
     unittest.main()

Tests/test_imageenhance.py

@@ -45,8 +45,9 @@ class TestImageEnhance(PillowTestCase):
 
         for op in ['Color', 'Brightness', 'Contrast', 'Sharpness']:
             for amount in [0, 0.5, 1.0]:
-                self._check_alpha(getattr(ImageEnhance, op)(original).enhance(amount),
-                                  original, op, amount)
+                self._check_alpha(
+                    getattr(ImageEnhance, op)(original).enhance(amount),
+                    original, op, amount)
 
 
 if __name__ == '__main__':

Tests/test_imagefile.py

@@ -215,12 +215,16 @@ class TestPyDecoder(PillowTestCase):
         buf = BytesIO(b'\x00'*255)
 
         im = MockImageFile(buf)
-        im.tile = [("MOCK", (xoff, yoff, xoff+xsize + 100, yoff+ysize), 32, None)]
+        im.tile = [
+            ("MOCK", (xoff, yoff, xoff+xsize + 100, yoff+ysize), 32, None)
+        ]
         d = self.get_decoder()
 
         self.assertRaises(ValueError, im.load)
 
-        im.tile = [("MOCK", (xoff, yoff, xoff+xsize, yoff+ysize + 100), 32, None)]
+        im.tile = [
+            ("MOCK", (xoff, yoff, xoff+xsize, yoff+ysize + 100), 32, None)
+        ]
         self.assertRaises(ValueError, im.load)
 
     def test_no_format(self):

Tests/test_imagefont.py

@@ -67,8 +67,11 @@ class TestImageFont(PillowTestCase):
                 }
 
     def setUp(self):
-        freetype_version = tuple(ImageFont.core.freetype2_version.split('.'))[:2]
-        self.metrics = self.METRICS.get(freetype_version, self.METRICS['Default'])
+        freetype_version = tuple(
+            ImageFont.core.freetype2_version.split('.')
+        )[:2]
+        self.metrics = self.METRICS.get(freetype_version,
+                                        self.METRICS['Default'])
 
     def get_font(self):
         return ImageFont.truetype(FONT_PATH, FONT_SIZE,
@@ -202,7 +205,8 @@ class TestImageFont(PillowTestCase):
             target_img = Image.open(target)
 
             # Epsilon ~.5 fails with FreeType 2.7
-            self.assert_image_similar(im, target_img, self.metrics['multiline'])
+            self.assert_image_similar(im, target_img,
+                                      self.metrics['multiline'])
 
     def test_unknown_align(self):
         im = Image.new(mode='RGB', size=(300, 100))
@@ -210,10 +214,9 @@ class TestImageFont(PillowTestCase):
         ttf = self.get_font()
 
         # Act/Assert
-        self.assertRaises(AssertionError,
-                          draw.multiline_text, (0, 0), TEST_TEXT,
-                                                       font=ttf,
-                                                       align="unknown")
+        self.assertRaises(
+            AssertionError,
+            draw.multiline_text, (0, 0), TEST_TEXT, font=ttf, align="unknown")
 
     def test_draw_align(self):
         im = Image.new('RGB', (300, 100), 'white')
@@ -413,7 +416,7 @@ class TestImageFont(PillowTestCase):
         im = Image.new(mode='RGB', size=(300, 100))
         target = im.copy()
         draw = ImageDraw.Draw(im)
-        #should not crash here.
+        # should not crash here.
         draw.text((10, 10), '', font=font)
         self.assert_image_equal(im, target)
 
@@ -428,7 +431,8 @@ class TestImageFont(PillowTestCase):
         # Make a copy of FreeTypeFont so we can patch the original
         free_type_font = copy.deepcopy(ImageFont.FreeTypeFont)
         with SimplePatcher(ImageFont, '_FreeTypeFont', free_type_font):
-            def loadable_font(filepath, size, index, encoding, *args, **kwargs):
+            def loadable_font(filepath, size, index, encoding,
+                              *args, **kwargs):
                 if filepath == path_to_fake:
                     return ImageFont._FreeTypeFont(FONT_PATH, size, index,
                                                    encoding, *args, **kwargs)

Tests/test_imagefont_bitmap.py

@@ -19,7 +19,8 @@ class TestImageFontBitmap(PillowTestCase):
             font='Tests/fonts/DejaVuSans-bitmap.ttf', size=24)
         size_outline = font_outline.getsize(text)
         size_bitmap = font_bitmap.getsize(text)
-        size_final = max(size_outline[0], size_bitmap[0]), max(size_outline[1], size_bitmap[1])
+        size_final = (max(size_outline[0], size_bitmap[0]),
+                      max(size_outline[1], size_bitmap[1]))
         im_bitmap = Image.new('RGB', size_final, (255, 255, 255))
         im_outline = im_bitmap.copy()
         draw_bitmap = ImageDraw.Draw(im_bitmap)

Tests/test_imagefontctl.py

@@ -11,7 +11,7 @@ FONT_PATH = "Tests/fonts/DejaVuSans.ttf"
 class TestImagecomplextext(PillowTestCase):
 
     def test_english(self):
-        #smoke test, this should not fail
+        # smoke test, this should not fail
         ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
         im = Image.new(mode='RGB', size=(300, 100))
         draw = ImageDraw.Draw(im)
@@ -30,7 +30,8 @@ class TestImagecomplextext(PillowTestCase):
         self.assert_image_similar(im, target_img, .5)
 
     def test_y_offset(self):
-        ttf = ImageFont.truetype("Tests/fonts/NotoNastaliqUrdu-Regular.ttf", FONT_SIZE)
+        ttf = ImageFont.truetype("Tests/fonts/NotoNastaliqUrdu-Regular.ttf",
+                                 FONT_SIZE)
 
         im = Image.new(mode='RGB', size=(300, 100))
         draw = ImageDraw.Draw(im)
@@ -70,7 +71,8 @@ class TestImagecomplextext(PillowTestCase):
 
         im = Image.new(mode='RGB', size=(300, 100))
         draw = ImageDraw.Draw(im)
-        draw.text((0, 0),  'سلطنة عمان Oman', font=ttf, fill=500, direction='ltr')
+        draw.text((0, 0),  'سلطنة عمان Oman',
+                  font=ttf, fill=500, direction='ltr')
 
         target = 'Tests/images/test_direction_ltr.png'
         target_img = Image.open(target)
@@ -82,7 +84,8 @@ class TestImagecomplextext(PillowTestCase):
 
         im = Image.new(mode='RGB', size=(300, 100))
         draw = ImageDraw.Draw(im)
-        draw.text((0, 0), 'Oman سلطنة عمان', font=ttf, fill=500, direction='rtl')
+        draw.text((0, 0), 'Oman سلطنة عمان',
+                  font=ttf, fill=500, direction='rtl')
 
         target = 'Tests/images/test_direction_ltr.png'
         target_img = Image.open(target)
@@ -120,7 +123,8 @@ class TestImagecomplextext(PillowTestCase):
 
         im = Image.new(mode='RGB', size=(300, 100))
         draw = ImageDraw.Draw(im)
-        draw.text((0, 0), 'اللغة العربية', font=ttf, fill=500, features=['-fina', '-init', '-medi'])
+        draw.text((0, 0), 'اللغة العربية', font=ttf, fill=500,
+                  features=['-fina', '-init', '-medi'])
 
         target = 'Tests/images/test_arabictext_features.png'
         target_img = Image.open(target)

Tests/test_imagemorph.py

@@ -265,8 +265,9 @@ class MorphTests(PillowTestCase):
         # Act / Assert
         with self.assertRaises(Exception) as e:
             lb.build_lut()
-        self.assertEqual(str(e.exception),
-                         'Syntax error in pattern "a pattern with a syntax error"')
+        self.assertEqual(
+            str(e.exception),
+            'Syntax error in pattern "a pattern with a syntax error"')
 
     def test_load_invalid_mrl(self):
         # Arrange

Tests/test_imageops.py

@@ -1,6 +1,7 @@
 from helper import unittest, PillowTestCase, hopper
 
 from PIL import ImageOps
+from PIL import Image
 
 
 class TestImageOps(PillowTestCase):
@@ -94,6 +95,107 @@ class TestImageOps(PillowTestCase):
         newimg = ImageOps.scale(i, 0.5)
         self.assertEqual(newimg.size, (25, 25))
 
+    def test_colorize_2color(self):
+        # Test the colorizing function with 2-color functionality
+
+        # Open test image (256px by 10px, black to white)
+        im = Image.open("Tests/images/bw_gradient.png")
+        im = im.convert("L")
+
+        # Create image with original 2-color functionality
+        im_test = ImageOps.colorize(im, 'red', 'green')
+
+        # Test output image (2-color)
+        left = (0, 1)
+        middle = (127, 1)
+        right = (255, 1)
+        self.assert_tuple_approx_equal(im_test.getpixel(left),
+                                       (255, 0, 0),
+                                       threshold=1,
+                                       msg='black test pixel incorrect')
+        self.assert_tuple_approx_equal(im_test.getpixel(middle),
+                                       (127, 63, 0),
+                                       threshold=1,
+                                       msg='mid test pixel incorrect')
+        self.assert_tuple_approx_equal(im_test.getpixel(right),
+                                       (0, 127, 0),
+                                       threshold=1,
+                                       msg='white test pixel incorrect')
+
+    def test_colorize_2color_offset(self):
+        # Test the colorizing function with 2-color functionality and offset
+
+        # Open test image (256px by 10px, black to white)
+        im = Image.open("Tests/images/bw_gradient.png")
+        im = im.convert("L")
+
+        # Create image with original 2-color functionality with offsets
+        im_test = ImageOps.colorize(im,
+                                    black='red',
+                                    white='green',
+                                    blackpoint=50,
+                                    whitepoint=100)
+
+        # Test output image (2-color) with offsets
+        left = (25, 1)
+        middle = (75, 1)
+        right = (125, 1)
+        self.assert_tuple_approx_equal(im_test.getpixel(left),
+                                       (255, 0, 0),
+                                       threshold=1,
+                                       msg='black test pixel incorrect')
+        self.assert_tuple_approx_equal(im_test.getpixel(middle),
+                                       (127, 63, 0),
+                                       threshold=1,
+                                       msg='mid test pixel incorrect')
+        self.assert_tuple_approx_equal(im_test.getpixel(right),
+                                       (0, 127, 0),
+                                       threshold=1,
+                                       msg='white test pixel incorrect')
+
+    def test_colorize_3color_offset(self):
+        # Test the colorizing function with 3-color functionality and offset
+
+        # Open test image (256px by 10px, black to white)
+        im = Image.open("Tests/images/bw_gradient.png")
+        im = im.convert("L")
+
+        # Create image with new three color functionality with offsets
+        im_test = ImageOps.colorize(im,
+                                    black='red',
+                                    white='green',
+                                    mid='blue',
+                                    blackpoint=50,
+                                    whitepoint=200,
+                                    midpoint=100)
+
+        # Test output image (3-color) with offsets
+        left = (25, 1)
+        left_middle = (75, 1)
+        middle = (100, 1)
+        right_middle = (150, 1)
+        right = (225, 1)
+        self.assert_tuple_approx_equal(im_test.getpixel(left),
+                                       (255, 0, 0),
+                                       threshold=1,
+                                       msg='black test pixel incorrect')
+        self.assert_tuple_approx_equal(im_test.getpixel(left_middle),
+                                       (127, 0, 127),
+                                       threshold=1,
+                                       msg='low-mid test pixel incorrect')
+        self.assert_tuple_approx_equal(im_test.getpixel(middle),
+                                       (0, 0, 255),
+                                       threshold=1,
+                                       msg='mid incorrect')
+        self.assert_tuple_approx_equal(im_test.getpixel(right_middle),
+                                       (0, 63, 127),
+                                       threshold=1,
+                                       msg='high-mid test pixel incorrect')
+        self.assert_tuple_approx_equal(im_test.getpixel(right),
+                                       (0, 127, 0),
+                                       threshold=1,
+                                       msg='white test pixel incorrect')
+
 
 if __name__ == '__main__':
     unittest.main()

Tests/test_imageops_usm.py

@@ -13,27 +13,25 @@ class TestImageOpsUsm(PillowTestCase):
     def test_ops_api(self):
 
         i = self.assert_warning(DeprecationWarning,
-            ImageOps.gaussian_blur, im, 2.0)
+                                ImageOps.gaussian_blur, im, 2.0)
+        self.assertEqual(i.mode, "RGB")
+        self.assertEqual(i.size, (128, 128))
+
+        i = self.assert_warning(DeprecationWarning, ImageOps.box_blur, im, 1)
+        self.assertEqual(i.mode, "RGB")
+        self.assertEqual(i.size, (128, 128))
+
+        i = self.assert_warning(DeprecationWarning, ImageOps.gblur, im, 2.0)
         self.assertEqual(i.mode, "RGB")
         self.assertEqual(i.size, (128, 128))
 
         i = self.assert_warning(DeprecationWarning,
-            ImageOps.box_blur, im, 1)
+                                ImageOps.unsharp_mask, im, 2.0, 125, 8)
         self.assertEqual(i.mode, "RGB")
         self.assertEqual(i.size, (128, 128))
 
         i = self.assert_warning(DeprecationWarning,
-            ImageOps.gblur, im, 2.0)
-        self.assertEqual(i.mode, "RGB")
-        self.assertEqual(i.size, (128, 128))
-
-        i = self.assert_warning(DeprecationWarning,
-            ImageOps.unsharp_mask, im, 2.0, 125, 8)
-        self.assertEqual(i.mode, "RGB")
-        self.assertEqual(i.size, (128, 128))
-
-        i = self.assert_warning(DeprecationWarning,
-            ImageOps.usm, im, 2.0, 125, 8)
+                                ImageOps.usm, im, 2.0, 125, 8)
         self.assertEqual(i.mode, "RGB")
         self.assertEqual(i.size, (128, 128))
 

Tests/test_imagepalette.py

@@ -9,7 +9,7 @@ class TestImagePalette(PillowTestCase):
 
         ImagePalette.ImagePalette("RGB", list(range(256))*3)
         self.assertRaises(ValueError,
-            ImagePalette.ImagePalette, "RGB", list(range(256))*2)
+                          ImagePalette.ImagePalette, "RGB", list(range(256))*2)
 
     def test_getcolor(self):
 
@@ -66,7 +66,7 @@ class TestImagePalette(PillowTestCase):
 
         # Act
         self.assertRaises(NotImplementedError,
-            ImagePalette.make_linear_lut, black, white)
+                          ImagePalette.make_linear_lut, black, white)
 
     def test_make_gamma_lut(self):
         # Arrange
@@ -133,7 +133,7 @@ class TestImagePalette(PillowTestCase):
 
     def test_invalid_palette(self):
         self.assertRaises(IOError,
-            ImagePalette.load, "Tests/images/hopper.jpg")
+                          ImagePalette.load, "Tests/images/hopper.jpg")
 
 
 if __name__ == '__main__':

Tests/test_lib_pack.py

@@ -34,7 +34,8 @@ class TestLibPack(PillowTestCase):
         self.assert_pack("1", "1;R", b'\xaa', 0, X, 0, X, 0, X, 0, X)
         self.assert_pack("1", "1;IR", b'\xaa', X, 0, X, 0, X, 0, X, 0)
 
-        self.assert_pack("1", "L", b'\xff\x00\x00\xff\x00\x00', X, 0, 0, X, 0, 0)
+        self.assert_pack(
+            "1", "L", b'\xff\x00\x00\xff\x00\x00', X, 0, 0, X, 0, 0)
 
     def test_L(self):
         self.assert_pack("L", "L", 1, 1, 2, 3, 4)
@@ -57,14 +58,18 @@ class TestLibPack(PillowTestCase):
 
     def test_RGB(self):
         self.assert_pack("RGB", "RGB", 3, (1, 2, 3), (4, 5, 6), (7, 8, 9))
-        self.assert_pack("RGB", "RGBX",
+        self.assert_pack(
+            "RGB", "RGBX",
             b'\x01\x02\x03\xff\x05\x06\x07\xff', (1, 2, 3), (5, 6, 7))
-        self.assert_pack("RGB", "XRGB",
+        self.assert_pack(
+            "RGB", "XRGB",
             b'\x00\x02\x03\x04\x00\x06\x07\x08', (2, 3, 4), (6, 7, 8))
         self.assert_pack("RGB", "BGR", 3, (3, 2, 1), (6, 5, 4), (9, 8, 7))
-        self.assert_pack("RGB", "BGRX",
+        self.assert_pack(
+            "RGB", "BGRX",
             b'\x01\x02\x03\x00\x05\x06\x07\x00', (3, 2, 1), (7, 6, 5))
-        self.assert_pack("RGB", "XBGR",
+        self.assert_pack(
+            "RGB", "XBGR",
             b'\x00\x02\x03\x04\x00\x06\x07\x08', (4, 3, 2), (8, 7, 6))
         self.assert_pack("RGB", "RGB;L", 3, (1, 4, 7), (2, 5, 8), (3, 6, 9))
         self.assert_pack("RGB", "R", 1, (1, 9, 9), (2, 9, 9), (3, 9, 9))
@@ -72,71 +77,98 @@ class TestLibPack(PillowTestCase):
         self.assert_pack("RGB", "B", 1, (9, 9, 1), (9, 9, 2), (9, 9, 3))
 
     def test_RGBA(self):
-        self.assert_pack("RGBA", "RGBA", 4,
-            (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
-        self.assert_pack("RGBA", "RGBA;L", 4,
-            (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12))
-        self.assert_pack("RGBA", "RGB", 3, (1, 2, 3, 14), (4, 5, 6, 15), (7, 8, 9, 16))
-        self.assert_pack("RGBA", "BGR", 3, (3, 2, 1, 14), (6, 5, 4, 15), (9, 8, 7, 16))
-        self.assert_pack("RGBA", "BGRA", 4,
+        self.assert_pack(
+            "RGBA", "RGBA", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
+        self.assert_pack(
+            "RGBA", "RGBA;L", 4, (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12))
+        self.assert_pack(
+            "RGBA", "RGB", 3, (1, 2, 3, 14), (4, 5, 6, 15), (7, 8, 9, 16))
+        self.assert_pack(
+            "RGBA", "BGR", 3, (3, 2, 1, 14), (6, 5, 4, 15), (9, 8, 7, 16))
+        self.assert_pack(
+            "RGBA", "BGRA", 4,
             (3, 2, 1, 4), (7, 6, 5, 8), (11, 10, 9, 12))
-        self.assert_pack("RGBA", "ABGR", 4,
-            (4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9))
-        self.assert_pack("RGBA", "BGRa", 4,
+        self.assert_pack(
+            "RGBA", "ABGR", 4, (4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9))
+        self.assert_pack(
+            "RGBA", "BGRa", 4,
             (191, 127, 63, 4), (223, 191, 159, 8), (233, 212, 191, 12))
-        self.assert_pack("RGBA", "R", 1, (1, 0, 8, 9), (2, 0, 8, 9), (3, 0, 8, 0))
-        self.assert_pack("RGBA", "G", 1, (6, 1, 8, 9), (6, 2, 8, 9), (6, 3, 8, 9))
-        self.assert_pack("RGBA", "B", 1, (6, 7, 1, 9), (6, 7, 2, 0), (6, 7, 3, 9))
-        self.assert_pack("RGBA", "A", 1, (6, 7, 0, 1), (6, 7, 0, 2), (0, 7, 0, 3))
+        self.assert_pack(
+            "RGBA", "R", 1, (1, 0, 8, 9), (2, 0, 8, 9), (3, 0, 8, 0))
+        self.assert_pack(
+            "RGBA", "G", 1, (6, 1, 8, 9), (6, 2, 8, 9), (6, 3, 8, 9))
+        self.assert_pack(
+            "RGBA", "B", 1, (6, 7, 1, 9), (6, 7, 2, 0), (6, 7, 3, 9))
+        self.assert_pack(
+            "RGBA", "A", 1, (6, 7, 0, 1), (6, 7, 0, 2), (0, 7, 0, 3))
 
     def test_RGBa(self):
-        self.assert_pack("RGBa", "RGBa", 4,
-            (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
-        self.assert_pack("RGBa", "BGRa", 4,
-            (3, 2, 1, 4), (7, 6, 5, 8), (11, 10, 9, 12))
-        self.assert_pack("RGBa", "aBGR", 4,
-            (4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9))
+        self.assert_pack(
+            "RGBa", "RGBa", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
+        self.assert_pack(
+            "RGBa", "BGRa", 4, (3, 2, 1, 4), (7, 6, 5, 8), (11, 10, 9, 12))
+        self.assert_pack(
+            "RGBa", "aBGR", 4, (4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9))
 
     def test_RGBX(self):
-        self.assert_pack("RGBX", "RGBX", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
-        self.assert_pack("RGBX", "RGBX;L", 4, (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12))
-        self.assert_pack("RGBX", "RGB", 3, (1, 2, 3, X), (4, 5, 6, X), (7, 8, 9, X))
-        self.assert_pack("RGBX", "BGR", 3, (3, 2, 1, X), (6, 5, 4, X), (9, 8, 7, X))
-        self.assert_pack("RGBX", "BGRX",
+        self.assert_pack(
+            "RGBX", "RGBX", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
+        self.assert_pack(
+            "RGBX", "RGBX;L", 4, (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12))
+        self.assert_pack(
+            "RGBX", "RGB", 3, (1, 2, 3, X), (4, 5, 6, X), (7, 8, 9, X))
+        self.assert_pack(
+            "RGBX", "BGR", 3, (3, 2, 1, X), (6, 5, 4, X), (9, 8, 7, X))
+        self.assert_pack(
+            "RGBX", "BGRX",
             b'\x01\x02\x03\x00\x05\x06\x07\x00\t\n\x0b\x00',
             (3, 2, 1, X), (7, 6, 5, X), (11, 10, 9, X))
-        self.assert_pack("RGBX", "XBGR",
+        self.assert_pack(
+            "RGBX", "XBGR",
             b'\x00\x02\x03\x04\x00\x06\x07\x08\x00\n\x0b\x0c',
             (4, 3, 2, X), (8, 7, 6, X), (12, 11, 10, X))
-        self.assert_pack("RGBX", "R", 1, (1, 0, 8, 9), (2, 0, 8, 9), (3, 0, 8, 0))
-        self.assert_pack("RGBX", "G", 1, (6, 1, 8, 9), (6, 2, 8, 9), (6, 3, 8, 9))
-        self.assert_pack("RGBX", "B", 1, (6, 7, 1, 9), (6, 7, 2, 0), (6, 7, 3, 9))
-        self.assert_pack("RGBX", "X", 1, (6, 7, 0, 1), (6, 7, 0, 2), (0, 7, 0, 3))
+        self.assert_pack("RGBX", "R", 1,
+                         (1, 0, 8, 9), (2, 0, 8, 9), (3, 0, 8, 0))
+        self.assert_pack("RGBX", "G", 1,
+                         (6, 1, 8, 9), (6, 2, 8, 9), (6, 3, 8, 9))
+        self.assert_pack("RGBX", "B", 1,
+                         (6, 7, 1, 9), (6, 7, 2, 0), (6, 7, 3, 9))
+        self.assert_pack("RGBX", "X", 1,
+                         (6, 7, 0, 1), (6, 7, 0, 2), (0, 7, 0, 3))
 
     def test_CMYK(self):
-        self.assert_pack("CMYK", "CMYK", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
-        self.assert_pack("CMYK", "CMYK;I", 4,
+        self.assert_pack("CMYK", "CMYK", 4,
+                         (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
+        self.assert_pack(
+            "CMYK", "CMYK;I", 4,
             (254, 253, 252, 251), (250, 249, 248, 247), (246, 245, 244, 243))
-        self.assert_pack("CMYK", "CMYK;L", 4,
-            (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12))
-        self.assert_pack("CMYK", "K", 1, (6, 7, 0, 1), (6, 7, 0, 2), (0, 7, 0, 3))
+        self.assert_pack(
+            "CMYK", "CMYK;L", 4, (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12))
+        self.assert_pack("CMYK", "K", 1,
+                         (6, 7, 0, 1), (6, 7, 0, 2), (0, 7, 0, 3))
 
     def test_YCbCr(self):
         self.assert_pack("YCbCr", "YCbCr", 3, (1, 2, 3), (4, 5, 6), (7, 8, 9))
-        self.assert_pack("YCbCr", "YCbCr;L", 3, (1, 4, 7), (2, 5, 8), (3, 6, 9))
-        self.assert_pack("YCbCr", "YCbCrX",
+        self.assert_pack("YCbCr", "YCbCr;L", 3,
+                         (1, 4, 7), (2, 5, 8), (3, 6, 9))
+        self.assert_pack(
+            "YCbCr", "YCbCrX",
             b'\x01\x02\x03\xff\x05\x06\x07\xff\t\n\x0b\xff',
             (1, 2, 3), (5, 6, 7), (9, 10, 11))
-        self.assert_pack("YCbCr", "YCbCrK",
+        self.assert_pack(
+            "YCbCr", "YCbCrK",
             b'\x01\x02\x03\xff\x05\x06\x07\xff\t\n\x0b\xff',
             (1, 2, 3), (5, 6, 7), (9, 10, 11))
-        self.assert_pack("YCbCr", "Y", 1, (1, 0, 8, 9), (2, 0, 8, 9), (3, 0, 8, 0))
-        self.assert_pack("YCbCr", "Cb", 1, (6, 1, 8, 9), (6, 2, 8, 9), (6, 3, 8, 9))
-        self.assert_pack("YCbCr", "Cr", 1, (6, 7, 1, 9), (6, 7, 2, 0), (6, 7, 3, 9))
+        self.assert_pack("YCbCr", "Y", 1,
+                         (1, 0, 8, 9), (2, 0, 8, 9), (3, 0, 8, 0))
+        self.assert_pack("YCbCr", "Cb", 1,
+                         (6, 1, 8, 9), (6, 2, 8, 9), (6, 3, 8, 9))
+        self.assert_pack("YCbCr", "Cr", 1,
+                         (6, 7, 1, 9), (6, 7, 2, 0), (6, 7, 3, 9))
 
     def test_LAB(self):
-        self.assert_pack("LAB", "LAB", 3,
-            (1, 130, 131), (4, 133, 134), (7, 136, 137))
+        self.assert_pack(
+            "LAB", "LAB", 3, (1, 130, 131), (4, 133, 134), (7, 136, 137))
         self.assert_pack("LAB", "L", 1, (1, 9, 9), (2, 9, 9), (3, 9, 9))
         self.assert_pack("LAB", "A", 1, (9, 1, 9), (9, 2, 9), (9, 3, 9))
         self.assert_pack("LAB", "B", 1, (9, 9, 1), (9, 9, 2), (9, 9, 3))
@@ -149,35 +181,35 @@ class TestLibPack(PillowTestCase):
 
     def test_I(self):
         self.assert_pack("I", "I;16B", 2, 0x0102, 0x0304)
-        self.assert_pack("I", "I;32S",
-            b'\x83\x00\x00\x01\x01\x00\x00\x83',
-            0x01000083, -2097151999)
+        self.assert_pack(
+            "I", "I;32S",
+            b'\x83\x00\x00\x01\x01\x00\x00\x83', 0x01000083, -2097151999)
 
         if sys.byteorder == 'little':
             self.assert_pack("I", "I", 4, 0x04030201, 0x08070605)
-            self.assert_pack("I", "I;32NS",
-                b'\x83\x00\x00\x01\x01\x00\x00\x83',
-                0x01000083, -2097151999)
+            self.assert_pack(
+                "I", "I;32NS",
+                b'\x83\x00\x00\x01\x01\x00\x00\x83', 0x01000083, -2097151999)
         else:
             self.assert_pack("I", "I", 4, 0x01020304, 0x05060708)
-            self.assert_pack("I", "I;32NS",
-                b'\x83\x00\x00\x01\x01\x00\x00\x83',
-                -2097151999, 0x01000083)
+            self.assert_pack(
+                "I", "I;32NS",
+                b'\x83\x00\x00\x01\x01\x00\x00\x83', -2097151999, 0x01000083)
 
     def test_F_float(self):
-        self.assert_pack("F", "F;32F", 4,
-            1.539989614439558e-36, 4.063216068939723e-34)
+        self.assert_pack(
+            "F", "F;32F", 4, 1.539989614439558e-36, 4.063216068939723e-34)
 
         if sys.byteorder == 'little':
-            self.assert_pack("F", "F", 4,
-                1.539989614439558e-36, 4.063216068939723e-34)
-            self.assert_pack("F", "F;32NF", 4,
-                1.539989614439558e-36, 4.063216068939723e-34)
+            self.assert_pack(
+                "F", "F", 4, 1.539989614439558e-36, 4.063216068939723e-34)
+            self.assert_pack(
+                "F", "F;32NF", 4, 1.539989614439558e-36, 4.063216068939723e-34)
         else:
-            self.assert_pack("F", "F", 4,
-                2.387939260590663e-38, 6.301941157072183e-36)
-            self.assert_pack("F", "F;32NF", 4,
-                2.387939260590663e-38, 6.301941157072183e-36)
+            self.assert_pack(
+                "F", "F", 4, 2.387939260590663e-38, 6.301941157072183e-36)
+            self.assert_pack(
+                "F", "F;32NF", 4, 2.387939260590663e-38, 6.301941157072183e-36)
 
 
 class TestLibUnpack(PillowTestCase):
@@ -258,9 +290,12 @@ class TestLibUnpack(PillowTestCase):
         self.assert_unpack("RGB", "RGBX", 4, (1, 2, 3), (5, 6, 7), (9, 10, 11))
         self.assert_unpack("RGB", "RGBX;L", 4, (1, 4, 7), (2, 5, 8), (3, 6, 9))
         self.assert_unpack("RGB", "BGRX", 4, (3, 2, 1), (7, 6, 5), (11, 10, 9))
-        self.assert_unpack("RGB", "XRGB", 4, (2, 3, 4), (6, 7, 8), (10, 11, 12))
-        self.assert_unpack("RGB", "XBGR", 4, (4, 3, 2), (8, 7, 6), (12, 11, 10))
-        self.assert_unpack("RGB", "YCC;P",
+        self.assert_unpack(
+            "RGB", "XRGB", 4, (2, 3, 4), (6, 7, 8), (10, 11, 12))
+        self.assert_unpack(
+            "RGB", "XBGR", 4, (4, 3, 2), (8, 7, 6), (12, 11, 10))
+        self.assert_unpack(
+            "RGB", "YCC;P",
             b'D]\x9c\x82\x1a\x91\xfaOC\xe7J\x12',  # random data
             (127, 102, 0), (192, 227, 0), (213, 255, 170), (98, 255, 133))
         self.assert_unpack("RGB", "R", 1, (1, 0, 0), (2, 0, 0), (3, 0, 0))
@@ -268,130 +303,172 @@ class TestLibUnpack(PillowTestCase):
         self.assert_unpack("RGB", "B", 1, (0, 0, 1), (0, 0, 2), (0, 0, 3))
 
     def test_RGBA(self):
-        self.assert_unpack("RGBA", "LA", 2, (1, 1, 1, 2), (3, 3, 3, 4), (5, 5, 5, 6))
-        self.assert_unpack("RGBA", "LA;16B", 4,
-            (1, 1, 1, 3), (5, 5, 5, 7), (9, 9, 9, 11))
-        self.assert_unpack("RGBA", "RGBA", 4,
-            (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
-        self.assert_unpack("RGBA", "RGBa", 4,
+        self.assert_unpack(
+            "RGBA", "LA", 2, (1, 1, 1, 2), (3, 3, 3, 4), (5, 5, 5, 6))
+        self.assert_unpack(
+            "RGBA", "LA;16B", 4, (1, 1, 1, 3), (5, 5, 5, 7), (9, 9, 9, 11))
+        self.assert_unpack(
+            "RGBA", "RGBA", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
+        self.assert_unpack(
+            "RGBA", "RGBa", 4,
             (63, 127, 191, 4), (159, 191, 223, 8), (191, 212, 233, 12))
-        self.assert_unpack("RGBA", "RGBa",
+        self.assert_unpack(
+            "RGBA", "RGBa",
             b'\x01\x02\x03\x00\x10\x20\x30\xff',
             (0, 0, 0, 0), (16, 32, 48, 255))
-        self.assert_unpack("RGBA", "RGBa;16L", 8,
+        self.assert_unpack(
+            "RGBA", "RGBa;16L", 8,
             (63, 127, 191, 8), (159, 191, 223, 16), (191, 212, 233, 24))
-        self.assert_unpack("RGBA", "RGBa;16L",
+        self.assert_unpack(
+            "RGBA", "RGBa;16L",
             b'\x88\x01\x88\x02\x88\x03\x88\x00'
             b'\x88\x10\x88\x20\x88\x30\x88\xff',
             (0, 0, 0, 0), (16, 32, 48, 255))
-        self.assert_unpack("RGBA", "RGBa;16B", 8,
+        self.assert_unpack(
+            "RGBA", "RGBa;16B", 8,
             (36, 109, 182, 7), (153, 187, 221, 15), (188, 210, 232, 23))
-        self.assert_unpack("RGBA", "RGBa;16B",
+        self.assert_unpack(
+            "RGBA", "RGBa;16B",
             b'\x01\x88\x02\x88\x03\x88\x00\x88'
             b'\x10\x88\x20\x88\x30\x88\xff\x88',
             (0, 0, 0, 0), (16, 32, 48, 255))
-        self.assert_unpack("RGBA", "BGRa", 4,
+        self.assert_unpack(
+            "RGBA", "BGRa", 4,
             (191, 127, 63, 4), (223, 191, 159, 8), (233, 212, 191, 12))
-        self.assert_unpack("RGBA", "BGRa",
+        self.assert_unpack(
+            "RGBA", "BGRa",
             b'\x01\x02\x03\x00\x10\x20\x30\xff',
             (0, 0, 0, 0), (48, 32, 16, 255))
-        self.assert_unpack("RGBA", "RGBA;I", 4,
+        self.assert_unpack(
+            "RGBA", "RGBA;I", 4,
             (254, 253, 252, 4), (250, 249, 248, 8), (246, 245, 244, 12))
-        self.assert_unpack("RGBA", "RGBA;L", 4,
-            (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12))
+        self.assert_unpack(
+            "RGBA", "RGBA;L", 4, (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12))
         self.assert_unpack("RGBA", "RGBA;15", 2, (8, 131, 0, 0), (24, 0, 8, 0))
         self.assert_unpack("RGBA", "BGRA;15", 2, (0, 131, 8, 0), (8, 0, 24, 0))
-        self.assert_unpack("RGBA", "RGBA;4B", 2, (17, 0, 34, 0), (51, 0, 68, 0))
-        self.assert_unpack("RGBA", "RGBA;16L", 8, (2, 4, 6, 8), (10, 12, 14, 16))
-        self.assert_unpack("RGBA", "RGBA;16B", 8, (1, 3, 5, 7), (9, 11, 13, 15))
-        self.assert_unpack("RGBA", "BGRA", 4,
-            (3, 2, 1, 4), (7, 6, 5, 8), (11, 10, 9, 12))
-        self.assert_unpack("RGBA", "ARGB", 4,
-            (2, 3, 4, 1), (6, 7, 8, 5), (10, 11, 12, 9))
-        self.assert_unpack("RGBA", "ABGR", 4,
-            (4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9))
-        self.assert_unpack("RGBA", "YCCA;P",
+        self.assert_unpack(
+            "RGBA", "RGBA;4B", 2, (17, 0, 34, 0), (51, 0, 68, 0))
+        self.assert_unpack(
+            "RGBA", "RGBA;16L", 8, (2, 4, 6, 8), (10, 12, 14, 16))
+        self.assert_unpack(
+            "RGBA", "RGBA;16B", 8, (1, 3, 5, 7), (9, 11, 13, 15))
+        self.assert_unpack(
+            "RGBA", "BGRA", 4, (3, 2, 1, 4), (7, 6, 5, 8), (11, 10, 9, 12))
+        self.assert_unpack(
+            "RGBA", "ARGB", 4, (2, 3, 4, 1), (6, 7, 8, 5), (10, 11, 12, 9))
+        self.assert_unpack(
+            "RGBA", "ABGR", 4, (4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9))
+        self.assert_unpack(
+            "RGBA", "YCCA;P",
             b']bE\x04\xdd\xbej\xed57T\xce\xac\xce:\x11',  # random data
             (0, 161, 0, 4), (255, 255, 255, 237), (27, 158, 0, 206), (0, 118, 0, 17))
-        self.assert_unpack("RGBA", "R", 1, (1, 0, 0, 0), (2, 0, 0, 0), (3, 0, 0, 0))
-        self.assert_unpack("RGBA", "G", 1, (0, 1, 0, 0), (0, 2, 0, 0), (0, 3, 0, 0))
-        self.assert_unpack("RGBA", "B", 1, (0, 0, 1, 0), (0, 0, 2, 0), (0, 0, 3, 0))
-        self.assert_unpack("RGBA", "A", 1, (0, 0, 0, 1), (0, 0, 0, 2), (0, 0, 0, 3))
+        self.assert_unpack(
+            "RGBA", "R", 1, (1, 0, 0, 0), (2, 0, 0, 0), (3, 0, 0, 0))
+        self.assert_unpack(
+            "RGBA", "G", 1, (0, 1, 0, 0), (0, 2, 0, 0), (0, 3, 0, 0))
+        self.assert_unpack(
+            "RGBA", "B", 1, (0, 0, 1, 0), (0, 0, 2, 0), (0, 0, 3, 0))
+        self.assert_unpack(
+            "RGBA", "A", 1, (0, 0, 0, 1), (0, 0, 0, 2), (0, 0, 0, 3))
 
     def test_RGBa(self):
-        self.assert_unpack("RGBa", "RGBa", 4,
-            (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
-        self.assert_unpack("RGBa", "BGRa", 4,
-            (3, 2, 1, 4), (7, 6, 5, 8), (11, 10, 9, 12))
-        self.assert_unpack("RGBa", "aRGB", 4,
-            (2, 3, 4, 1), (6, 7, 8, 5), (10, 11, 12, 9))
-        self.assert_unpack("RGBa", "aBGR", 4,
-            (4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9))
+        self.assert_unpack(
+            "RGBa", "RGBa", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
+        self.assert_unpack(
+            "RGBa", "BGRa", 4, (3, 2, 1, 4), (7, 6, 5, 8), (11, 10, 9, 12))
+        self.assert_unpack(
+            "RGBa", "aRGB", 4, (2, 3, 4, 1), (6, 7, 8, 5), (10, 11, 12, 9))
+        self.assert_unpack(
+            "RGBa", "aBGR", 4, (4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9))
 
     def test_RGBX(self):
-        self.assert_unpack("RGBX", "RGB", 3, (1, 2, 3, X), (4, 5, 6, X), (7, 8, 9, X))
-        self.assert_unpack("RGBX", "RGB;L", 3, (1, 4, 7, X), (2, 5, 8, X), (3, 6, 9, X))
+        self.assert_unpack("RGBX", "RGB", 3,
+                           (1, 2, 3, X), (4, 5, 6, X), (7, 8, 9, X))
+        self.assert_unpack("RGBX", "RGB;L", 3,
+                           (1, 4, 7, X), (2, 5, 8, X), (3, 6, 9, X))
         self.assert_unpack("RGBX", "RGB;16B", 6, (1, 3, 5, X), (7, 9, 11, X))
-        self.assert_unpack("RGBX", "BGR", 3, (3, 2, 1, X), (6, 5, 4, X), (9, 8, 7, X))
+        self.assert_unpack("RGBX", "BGR", 3,
+                           (3, 2, 1, X), (6, 5, 4, X), (9, 8, 7, X))
         self.assert_unpack("RGBX", "RGB;15", 2, (8, 131, 0, X), (24, 0, 8, X))
         self.assert_unpack("RGBX", "BGR;15", 2, (0, 131, 8, X), (8, 0, 24, X))
         self.assert_unpack("RGBX", "RGB;4B", 2, (17, 0, 34, X), (51, 0, 68, X))
-        self.assert_unpack("RGBX", "RGBX", 4,
-            (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
-        self.assert_unpack("RGBX", "RGBXX", 5,
-            (1, 2, 3, 4), (6, 7, 8, 9), (11, 12, 13, 14))
-        self.assert_unpack("RGBX", "RGBXXX", 6,
-            (1, 2, 3, 4), (7, 8, 9, 10), (13, 14, 15, 16))
-        self.assert_unpack("RGBX", "RGBX;L", 4,
-            (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12))
-        self.assert_unpack("RGBX", "RGBX;16L", 8, (2, 4, 6, 8), (10, 12, 14, 16))
-        self.assert_unpack("RGBX", "RGBX;16B", 8, (1, 3, 5, 7), (9, 11, 13, 15))
-        self.assert_unpack("RGBX", "BGRX", 4, (3, 2, 1, X), (7, 6, 5, X), (11, 10, 9, X))
-        self.assert_unpack("RGBX", "XRGB", 4, (2, 3, 4, X), (6, 7, 8, X), (10, 11, 12, X))
-        self.assert_unpack("RGBX", "XBGR", 4, (4, 3, 2, X), (8, 7, 6, X), (12, 11, 10, X))
-        self.assert_unpack("RGBX", "YCC;P",
+        self.assert_unpack(
+            "RGBX", "RGBX", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
+        self.assert_unpack(
+            "RGBX", "RGBXX", 5, (1, 2, 3, 4), (6, 7, 8, 9), (11, 12, 13, 14))
+        self.assert_unpack(
+            "RGBX", "RGBXXX", 6, (1, 2, 3, 4), (7, 8, 9, 10), (13, 14, 15, 16))
+        self.assert_unpack(
+            "RGBX", "RGBX;L", 4, (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12))
+        self.assert_unpack("RGBX", "RGBX;16L", 8,
+                           (2, 4, 6, 8), (10, 12, 14, 16))
+        self.assert_unpack("RGBX", "RGBX;16B", 8,
+                           (1, 3, 5, 7), (9, 11, 13, 15))
+        self.assert_unpack("RGBX", "BGRX", 4,
+                           (3, 2, 1, X), (7, 6, 5, X), (11, 10, 9, X))
+        self.assert_unpack("RGBX", "XRGB", 4,
+                           (2, 3, 4, X), (6, 7, 8, X), (10, 11, 12, X))
+        self.assert_unpack("RGBX", "XBGR", 4,
+                           (4, 3, 2, X), (8, 7, 6, X), (12, 11, 10, X))
+        self.assert_unpack(
+            "RGBX", "YCC;P",
             b'D]\x9c\x82\x1a\x91\xfaOC\xe7J\x12',  # random data
             (127, 102, 0, X), (192, 227, 0, X), (213, 255, 170, X), (98, 255, 133, X))
-        self.assert_unpack("RGBX", "R", 1, (1, 0, 0, 0), (2, 0, 0, 0), (3, 0, 0, 0))
-        self.assert_unpack("RGBX", "G", 1, (0, 1, 0, 0), (0, 2, 0, 0), (0, 3, 0, 0))
-        self.assert_unpack("RGBX", "B", 1, (0, 0, 1, 0), (0, 0, 2, 0), (0, 0, 3, 0))
-        self.assert_unpack("RGBX", "X", 1, (0, 0, 0, 1), (0, 0, 0, 2), (0, 0, 0, 3))
+        self.assert_unpack("RGBX", "R", 1,
+                           (1, 0, 0, 0), (2, 0, 0, 0), (3, 0, 0, 0))
+        self.assert_unpack("RGBX", "G", 1,
+                           (0, 1, 0, 0), (0, 2, 0, 0), (0, 3, 0, 0))
+        self.assert_unpack("RGBX", "B", 1,
+                           (0, 0, 1, 0), (0, 0, 2, 0), (0, 0, 3, 0))
+        self.assert_unpack("RGBX", "X", 1,
+                           (0, 0, 0, 1), (0, 0, 0, 2), (0, 0, 0, 3))
 
     def test_CMYK(self):
-        self.assert_unpack("CMYK", "CMYK", 4,
-            (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
-        self.assert_unpack("CMYK", "CMYKX", 5,
-            (1, 2, 3, 4), (6, 7, 8, 9), (11, 12, 13, 14))
-        self.assert_unpack("CMYK", "CMYKXX", 6,
-            (1, 2, 3, 4), (7, 8, 9, 10), (13, 14, 15, 16))
-        self.assert_unpack("CMYK", "CMYK;I", 4,
+        self.assert_unpack(
+            "CMYK", "CMYK", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12))
+        self.assert_unpack(
+            "CMYK", "CMYKX", 5, (1, 2, 3, 4), (6, 7, 8, 9), (11, 12, 13, 14))
+        self.assert_unpack(
+            "CMYK", "CMYKXX", 6, (1, 2, 3, 4), (7, 8, 9, 10), (13, 14, 15, 16))
+        self.assert_unpack(
+            "CMYK", "CMYK;I", 4,
             (254, 253, 252, 251), (250, 249, 248, 247), (246, 245, 244, 243))
-        self.assert_unpack("CMYK", "CMYK;L", 4,
-            (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12))
-        self.assert_unpack("CMYK", "C", 1, (1, 0, 0, 0), (2, 0, 0, 0), (3, 0, 0, 0))
-        self.assert_unpack("CMYK", "M", 1, (0, 1, 0, 0), (0, 2, 0, 0), (0, 3, 0, 0))
-        self.assert_unpack("CMYK", "Y", 1, (0, 0, 1, 0), (0, 0, 2, 0), (0, 0, 3, 0))
-        self.assert_unpack("CMYK", "K", 1, (0, 0, 0, 1), (0, 0, 0, 2), (0, 0, 0, 3))
-        self.assert_unpack("CMYK", "C;I", 1,
-            (254, 0, 0, 0), (253, 0, 0, 0), (252, 0, 0, 0))
-        self.assert_unpack("CMYK", "M;I", 1,
-            (0, 254, 0, 0), (0, 253, 0, 0), (0, 252, 0, 0))
-        self.assert_unpack("CMYK", "Y;I", 1,
-            (0, 0, 254, 0), (0, 0, 253, 0), (0, 0, 252, 0))
-        self.assert_unpack("CMYK", "K;I", 1,
-            (0, 0, 0, 254), (0, 0, 0, 253), (0, 0, 0, 252))
+        self.assert_unpack(
+            "CMYK", "CMYK;L", 4, (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12))
+        self.assert_unpack("CMYK", "C", 1,
+                           (1, 0, 0, 0), (2, 0, 0, 0), (3, 0, 0, 0))
+        self.assert_unpack("CMYK", "M", 1,
+                           (0, 1, 0, 0), (0, 2, 0, 0), (0, 3, 0, 0))
+        self.assert_unpack("CMYK", "Y", 1,
+                           (0, 0, 1, 0), (0, 0, 2, 0), (0, 0, 3, 0))
+        self.assert_unpack("CMYK", "K", 1,
+                           (0, 0, 0, 1), (0, 0, 0, 2), (0, 0, 0, 3))
+        self.assert_unpack(
+            "CMYK", "C;I", 1, (254, 0, 0, 0), (253, 0, 0, 0), (252, 0, 0, 0))
+        self.assert_unpack(
+            "CMYK", "M;I", 1, (0, 254, 0, 0), (0, 253, 0, 0), (0, 252, 0, 0))
+        self.assert_unpack(
+            "CMYK", "Y;I", 1, (0, 0, 254, 0), (0, 0, 253, 0), (0, 0, 252, 0))
+        self.assert_unpack(
+            "CMYK", "K;I", 1, (0, 0, 0, 254), (0, 0, 0, 253), (0, 0, 0, 252))
 
     def test_YCbCr(self):
-        self.assert_unpack("YCbCr", "YCbCr", 3, (1, 2, 3), (4, 5, 6), (7, 8, 9))
-        self.assert_unpack("YCbCr", "YCbCr;L", 3, (1, 4, 7), (2, 5, 8), (3, 6, 9))
-        self.assert_unpack("YCbCr", "YCbCrK", 4, (1, 2, 3), (5, 6, 7), (9, 10, 11))
-        self.assert_unpack("YCbCr", "YCbCrX", 4, (1, 2, 3), (5, 6, 7), (9, 10, 11))
-        self.assert_unpack("YCbCr", "YCbCrXX", 5, (1, 2, 3), (6, 7, 8), (11, 12, 13))
-        self.assert_unpack("YCbCr", "YCbCrXXX", 6, (1, 2, 3), (7, 8, 9), (13, 14, 15))
+        self.assert_unpack(
+            "YCbCr", "YCbCr", 3, (1, 2, 3), (4, 5, 6), (7, 8, 9))
+        self.assert_unpack(
+            "YCbCr", "YCbCr;L", 3, (1, 4, 7), (2, 5, 8), (3, 6, 9))
+        self.assert_unpack(
+            "YCbCr", "YCbCrK", 4, (1, 2, 3), (5, 6, 7), (9, 10, 11))
+        self.assert_unpack(
+            "YCbCr", "YCbCrX", 4, (1, 2, 3), (5, 6, 7), (9, 10, 11))
+        self.assert_unpack(
+            "YCbCr", "YCbCrXX", 5, (1, 2, 3), (6, 7, 8), (11, 12, 13))
+        self.assert_unpack(
+            "YCbCr", "YCbCrXXX", 6, (1, 2, 3), (7, 8, 9), (13, 14, 15))
 
     def test_LAB(self):
-        self.assert_unpack("LAB", "LAB", 3,
-            (1, 130, 131), (4, 133, 134), (7, 136, 137))
+        self.assert_unpack(
+            "LAB", "LAB", 3, (1, 130, 131), (4, 133, 134), (7, 136, 137))
         self.assert_unpack("LAB", "L", 1, (1, 0, 0), (2, 0, 0), (3, 0, 0))
         self.assert_unpack("LAB", "A", 1, (0, 1, 0), (0, 2, 0), (0, 3, 0))
         self.assert_unpack("LAB", "B", 1, (0, 0, 1), (0, 0, 2), (0, 0, 3))
@@ -410,30 +487,32 @@ class TestLibUnpack(PillowTestCase):
         self.assert_unpack("I", "I;16B", 2, 0x0102, 0x0304)
         self.assert_unpack("I", "I;16BS", b'\x83\x01\x01\x83', -31999, 0x0183)
         self.assert_unpack("I", "I;32", 4, 0x04030201, 0x08070605)
-        self.assert_unpack("I", "I;32S",
-            b'\x83\x00\x00\x01\x01\x00\x00\x83',
-            0x01000083, -2097151999)
+        self.assert_unpack(
+            "I", "I;32S",
+            b'\x83\x00\x00\x01\x01\x00\x00\x83', 0x01000083, -2097151999)
         self.assert_unpack("I", "I;32B", 4, 0x01020304, 0x05060708)
-        self.assert_unpack("I", "I;32BS",
-            b'\x83\x00\x00\x01\x01\x00\x00\x83',
-            -2097151999, 0x01000083)
+        self.assert_unpack(
+            "I", "I;32BS",
+            b'\x83\x00\x00\x01\x01\x00\x00\x83', -2097151999, 0x01000083)
 
         if sys.byteorder == 'little':
             self.assert_unpack("I", "I", 4, 0x04030201, 0x08070605)
             self.assert_unpack("I", "I;16N", 2, 0x0201, 0x0403)
-            self.assert_unpack("I", "I;16NS", b'\x83\x01\x01\x83', 0x0183, -31999)
+            self.assert_unpack("I", "I;16NS",
+                               b'\x83\x01\x01\x83', 0x0183, -31999)
             self.assert_unpack("I", "I;32N", 4, 0x04030201, 0x08070605)
-            self.assert_unpack("I", "I;32NS",
-                b'\x83\x00\x00\x01\x01\x00\x00\x83',
-                0x01000083, -2097151999)
+            self.assert_unpack(
+                "I", "I;32NS",
+                b'\x83\x00\x00\x01\x01\x00\x00\x83', 0x01000083, -2097151999)
         else:
             self.assert_unpack("I", "I", 4, 0x01020304, 0x05060708)
             self.assert_unpack("I", "I;16N", 2, 0x0102, 0x0304)
-            self.assert_unpack("I", "I;16NS", b'\x83\x01\x01\x83', -31999, 0x0183)
+            self.assert_unpack("I", "I;16NS",
+                               b'\x83\x01\x01\x83', -31999, 0x0183)
             self.assert_unpack("I", "I;32N", 4, 0x01020304, 0x05060708)
-            self.assert_unpack("I", "I;32NS",
-                b'\x83\x00\x00\x01\x01\x00\x00\x83',
-                -2097151999, 0x01000083)
+            self.assert_unpack(
+                "I", "I;32NS",
+                b'\x83\x00\x00\x01\x01\x00\x00\x83', -2097151999, 0x01000083)
 
     def test_F_int(self):
         self.assert_unpack("F", "F;8", 1, 0x01, 0x02, 0x03, 0x04)
@@ -443,55 +522,70 @@ class TestLibUnpack(PillowTestCase):
         self.assert_unpack("F", "F;16B", 2, 0x0102, 0x0304)
         self.assert_unpack("F", "F;16BS", b'\x83\x01\x01\x83', -31999, 0x0183)
         self.assert_unpack("F", "F;32", 4, 67305984, 134678016)
-        self.assert_unpack("F", "F;32S",
-            b'\x83\x00\x00\x01\x01\x00\x00\x83',
-            16777348, -2097152000)
+        self.assert_unpack(
+            "F", "F;32S",
+            b'\x83\x00\x00\x01\x01\x00\x00\x83', 16777348, -2097152000)
         self.assert_unpack("F", "F;32B", 4, 0x01020304, 0x05060708)
-        self.assert_unpack("F", "F;32BS",
-            b'\x83\x00\x00\x01\x01\x00\x00\x83',
-            -2097152000, 16777348)
+        self.assert_unpack(
+            "F", "F;32BS",
+            b'\x83\x00\x00\x01\x01\x00\x00\x83', -2097152000, 16777348)
 
         if sys.byteorder == 'little':
             self.assert_unpack("F", "F;16N", 2, 0x0201, 0x0403)
-            self.assert_unpack("F", "F;16NS", b'\x83\x01\x01\x83', 0x0183, -31999)
+            self.assert_unpack(
+                "F", "F;16NS",
+                b'\x83\x01\x01\x83', 0x0183, -31999)
             self.assert_unpack("F", "F;32N", 4, 67305984, 134678016)
-            self.assert_unpack("F", "F;32NS",
-                b'\x83\x00\x00\x01\x01\x00\x00\x83',
-                16777348, -2097152000)
+            self.assert_unpack(
+                "F", "F;32NS",
+                b'\x83\x00\x00\x01\x01\x00\x00\x83', 16777348, -2097152000)
         else:
             self.assert_unpack("F", "F;16N", 2, 0x0102, 0x0304)
-            self.assert_unpack("F", "F;16NS", b'\x83\x01\x01\x83', -31999, 0x0183)
+            self.assert_unpack(
+                "F", "F;16NS",
+                b'\x83\x01\x01\x83', -31999, 0x0183)
             self.assert_unpack("F", "F;32N", 4, 0x01020304, 0x05060708)
-            self.assert_unpack("F", "F;32NS",
+            self.assert_unpack(
+                "F", "F;32NS",
                 b'\x83\x00\x00\x01\x01\x00\x00\x83',
                 -2097152000, 16777348)
 
     def test_F_float(self):
-        self.assert_unpack("F", "F;32F", 4,
+        self.assert_unpack(
+            "F", "F;32F", 4,
             1.539989614439558e-36, 4.063216068939723e-34)
-        self.assert_unpack("F", "F;32BF", 4,
+        self.assert_unpack(
+            "F", "F;32BF", 4,
             2.387939260590663e-38, 6.301941157072183e-36)
-        self.assert_unpack("F", "F;64F",
+        self.assert_unpack(
+            "F", "F;64F",
             b'333333\xc3?\x00\x00\x00\x00\x00J\x93\xc0',  # by struct.pack
             0.15000000596046448, -1234.5)
-        self.assert_unpack("F", "F;64BF",
+        self.assert_unpack(
+            "F", "F;64BF",
             b'?\xc3333333\xc0\x93J\x00\x00\x00\x00\x00',  # by struct.pack
             0.15000000596046448, -1234.5)
 
         if sys.byteorder == 'little':
-            self.assert_unpack("F", "F", 4,
+            self.assert_unpack(
+                "F", "F", 4,
                 1.539989614439558e-36, 4.063216068939723e-34)
-            self.assert_unpack("F", "F;32NF", 4,
+            self.assert_unpack(
+                "F", "F;32NF", 4,
                 1.539989614439558e-36, 4.063216068939723e-34)
-            self.assert_unpack("F", "F;64NF",
+            self.assert_unpack(
+                "F", "F;64NF",
                 b'333333\xc3?\x00\x00\x00\x00\x00J\x93\xc0',
                 0.15000000596046448, -1234.5)
         else:
-            self.assert_unpack("F", "F", 4,
+            self.assert_unpack(
+                "F", "F", 4,
                 2.387939260590663e-38, 6.301941157072183e-36)
-            self.assert_unpack("F", "F;32NF", 4,
+            self.assert_unpack(
+                "F", "F;32NF", 4,
                 2.387939260590663e-38, 6.301941157072183e-36)
-            self.assert_unpack("F", "F;64NF",
+            self.assert_unpack(
+                "F", "F;64NF",
                 b'?\xc3333333\xc0\x93J\x00\x00\x00\x00\x00',
                 0.15000000596046448, -1234.5)
 

Tests/test_locale.py

@@ -29,7 +29,7 @@ class TestLocale(PillowTestCase):
         Image.open(path)
         try:
             locale.setlocale(locale.LC_ALL, "polish")
-        except:
+        except locale.Error:
             unittest.skip('Polish locale not available')
         Image.open(path)
 

Tests/test_map.py

@@ -4,7 +4,8 @@ import sys
 from PIL import Image
 
 
-@unittest.skipIf(sys.platform.startswith('win32'), "Win32 does not call map_buffer")
+@unittest.skipIf(sys.platform.startswith('win32'),
+                 "Win32 does not call map_buffer")
 class TestMap(PillowTestCase):
     def test_overflow(self):
         # There is the potential to overflow comparisons in map.c

Tests/test_numpy.py

@@ -124,7 +124,9 @@ class TestNumpy(PillowTestCase):
     def test_save_tiff_uint16(self):
         # Tests that we're getting the pixel value in the right byte order.
         pixel_value = 0x1234
-        a = numpy.array([pixel_value] * TEST_IMAGE_SIZE[0] * TEST_IMAGE_SIZE[1], dtype=numpy.uint16)
+        a = numpy.array(
+            [pixel_value] * TEST_IMAGE_SIZE[0] * TEST_IMAGE_SIZE[1],
+            dtype=numpy.uint16)
         a.shape = TEST_IMAGE_SIZE
         img = Image.fromarray(a)
 

Tests/test_pdfparser.py

@@ -1,6 +1,8 @@
 from helper import unittest, PillowTestCase
 
-from PIL.PdfParser import IndirectObjectDef, IndirectReference, PdfBinary, PdfDict, PdfFormatError, PdfName, PdfParser, PdfStream, decode_text, encode_text, pdf_repr
+from PIL.PdfParser import IndirectObjectDef, IndirectReference, PdfBinary, \
+                          PdfDict, PdfFormatError, PdfName, PdfParser, \
+                          PdfStream, decode_text, encode_text, pdf_repr
 
 
 class TestPdfParser(PillowTestCase):
@@ -22,23 +24,35 @@ class TestPdfParser(PillowTestCase):
         self.assertNotEqual(IndirectObjectDef(1, 2), (1, 2))
 
     def test_parsing(self):
-        self.assertEqual(PdfParser.interpret_name(b"Name#23Hash"), b"Name#Hash")
+        self.assertEqual(PdfParser.interpret_name(b"Name#23Hash"),
+                         b"Name#Hash")
         self.assertEqual(PdfParser.interpret_name(b"Name#23Hash", as_text=True), "Name#Hash")
-        self.assertEqual(PdfParser.get_value(b"1 2 R ", 0), (IndirectReference(1, 2), 5))
+        self.assertEqual(PdfParser.get_value(b"1 2 R ", 0),
+                         (IndirectReference(1, 2), 5))
         self.assertEqual(PdfParser.get_value(b"true[", 0), (True, 4))
         self.assertEqual(PdfParser.get_value(b"false%", 0), (False, 5))
         self.assertEqual(PdfParser.get_value(b"null<", 0), (None, 4))
-        self.assertEqual(PdfParser.get_value(b"%cmt\n %cmt\n 123\n", 0), (123, 15))
-        self.assertEqual(PdfParser.get_value(b"<901FA3>", 0), (b"\x90\x1F\xA3", 8))
-        self.assertEqual(PdfParser.get_value(b"asd < 9 0 1 f A > qwe", 3), (b"\x90\x1F\xA0", 17))
+        self.assertEqual(PdfParser.get_value(b"%cmt\n %cmt\n 123\n", 0),
+                         (123, 15))
+        self.assertEqual(PdfParser.get_value(b"<901FA3>", 0),
+                         (b"\x90\x1F\xA3", 8))
+        self.assertEqual(PdfParser.get_value(b"asd < 9 0 1 f A > qwe", 3),
+                         (b"\x90\x1F\xA0", 17))
         self.assertEqual(PdfParser.get_value(b"(asd)", 0), (b"asd", 5))
-        self.assertEqual(PdfParser.get_value(b"(asd(qwe)zxc)zzz(aaa)", 0), (b"asd(qwe)zxc", 13))
-        self.assertEqual(PdfParser.get_value(b"(Two \\\nwords.)", 0), (b"Two words.", 14))
-        self.assertEqual(PdfParser.get_value(b"(Two\nlines.)", 0), (b"Two\nlines.", 12))
-        self.assertEqual(PdfParser.get_value(b"(Two\r\nlines.)", 0), (b"Two\nlines.", 13))
-        self.assertEqual(PdfParser.get_value(b"(Two\\nlines.)", 0), (b"Two\nlines.", 13))
-        self.assertEqual(PdfParser.get_value(b"(One\\(paren).", 0), (b"One(paren", 12))
-        self.assertEqual(PdfParser.get_value(b"(One\\)paren).", 0), (b"One)paren", 12))
+        self.assertEqual(PdfParser.get_value(b"(asd(qwe)zxc)zzz(aaa)", 0),
+                         (b"asd(qwe)zxc", 13))
+        self.assertEqual(PdfParser.get_value(b"(Two \\\nwords.)", 0),
+                         (b"Two words.", 14))
+        self.assertEqual(PdfParser.get_value(b"(Two\nlines.)", 0),
+                         (b"Two\nlines.", 12))
+        self.assertEqual(PdfParser.get_value(b"(Two\r\nlines.)", 0),
+                         (b"Two\nlines.", 13))
+        self.assertEqual(PdfParser.get_value(b"(Two\\nlines.)", 0),
+                         (b"Two\nlines.", 13))
+        self.assertEqual(PdfParser.get_value(b"(One\\(paren).", 0),
+                         (b"One(paren", 12))
+        self.assertEqual(PdfParser.get_value(b"(One\\)paren).", 0),
+                         (b"One)paren", 12))
         self.assertEqual(PdfParser.get_value(b"(\\0053)", 0), (b"\x053", 7))
         self.assertEqual(PdfParser.get_value(b"(\\053)", 0), (b"\x2B", 6))
         self.assertEqual(PdfParser.get_value(b"(\\53)", 0), (b"\x2B", 5))
@@ -65,23 +79,30 @@ class TestPdfParser(PillowTestCase):
 
     def test_pdf_repr(self):
         self.assertEqual(bytes(IndirectReference(1, 2)), b"1 2 R")
-        self.assertEqual(bytes(IndirectObjectDef(*IndirectReference(1, 2))), b"1 2 obj")
+        self.assertEqual(bytes(IndirectObjectDef(*IndirectReference(1, 2))),
+                         b"1 2 obj")
         self.assertEqual(bytes(PdfName(b"Name#Hash")), b"/Name#23Hash")
         self.assertEqual(bytes(PdfName("Name#Hash")), b"/Name#23Hash")
-        self.assertEqual(bytes(PdfDict({b"Name": IndirectReference(1, 2)})), b"<<\n/Name 1 2 R\n>>")
-        self.assertEqual(bytes(PdfDict({"Name": IndirectReference(1, 2)})), b"<<\n/Name 1 2 R\n>>")
+        self.assertEqual(bytes(PdfDict({b"Name": IndirectReference(1, 2)})),
+                         b"<<\n/Name 1 2 R\n>>")
+        self.assertEqual(bytes(PdfDict({"Name": IndirectReference(1, 2)})),
+                         b"<<\n/Name 1 2 R\n>>")
         self.assertEqual(pdf_repr(IndirectReference(1, 2)), b"1 2 R")
-        self.assertEqual(pdf_repr(IndirectObjectDef(*IndirectReference(1, 2))), b"1 2 obj")
+        self.assertEqual(pdf_repr(IndirectObjectDef(*IndirectReference(1, 2))),
+                         b"1 2 obj")
         self.assertEqual(pdf_repr(PdfName(b"Name#Hash")), b"/Name#23Hash")
         self.assertEqual(pdf_repr(PdfName("Name#Hash")), b"/Name#23Hash")
-        self.assertEqual(pdf_repr(PdfDict({b"Name": IndirectReference(1, 2)})), b"<<\n/Name 1 2 R\n>>")
-        self.assertEqual(pdf_repr(PdfDict({"Name": IndirectReference(1, 2)})), b"<<\n/Name 1 2 R\n>>")
+        self.assertEqual(pdf_repr(PdfDict({b"Name": IndirectReference(1, 2)})),
+                         b"<<\n/Name 1 2 R\n>>")
+        self.assertEqual(pdf_repr(PdfDict({"Name": IndirectReference(1, 2)})),
+                         b"<<\n/Name 1 2 R\n>>")
         self.assertEqual(pdf_repr(123), b"123")
         self.assertEqual(pdf_repr(True), b"true")
         self.assertEqual(pdf_repr(False), b"false")
         self.assertEqual(pdf_repr(None), b"null")
         self.assertEqual(pdf_repr(b"a)/b\\(c"), br"(a\)/b\\\(c)")
-        self.assertEqual(pdf_repr([123, True, {"a": PdfName(b"b")}]), b"[ 123 true <<\n/a /b\n>> ]")
+        self.assertEqual(pdf_repr([123, True, {"a": PdfName(b"b")}]),
+                         b"[ 123 true <<\n/a /b\n>> ]")
         self.assertEqual(pdf_repr(PdfBinary(b"\x90\x1F\xA0")), b"<901FA0>")
 
 

docs/releasenotes/5.3.0.rst

@@ -0,0 +1,39 @@
+5.3.0
+-----
+
+API Changes
+===========
+
+Deprecations
+^^^^^^^^^^^^
+
+These version constants have been deprecated. ``VERSION`` will be removed in
+Pillow 6.0.0, and ``PILLOW_VERSION`` will be removed after that.
+
+* ``PIL.VERSION`` (old PIL version 1.1.7)
+* ``PIL.PILLOW_VERSION``
+* ``PIL.Image.VERSION``
+* ``PIL.Image.PILLOW_VERSION``
+
+Use ``PIL.__version__`` instead.
+
+API Additions
+=============
+
+ImageOps.colorize
+^^^^^^^^^^^^^^^^^
+
+Previously ``ImageOps.colorize`` only supported two-color mapping with 
+``black`` and ``white`` arguments being mapped to 0 and 255 respectively. 
+Now it supports three-color mapping with the optional ``mid`` parameter, and 
+the positions for all three color arguments can each be optionally specified 
+(``blackpoint``, ``whitepoint`` and ``midpoint``). 
+For example, with all optional arguments::
+	ImageOps.colorize(im, black=(32, 37, 79), white='white', mid=(59, 101, 175),
+                          blackpoint=15, whitepoint=240, midpoint=100)
+
+
+
+Other Changes
+=============
+

docs/releasenotes/index.rst

@@ -6,6 +6,7 @@ Release Notes
 .. toctree::
   :maxdepth: 2
 
+  5.3.0
   5.2.0
   5.1.0
   5.0.0

setup.py

@@ -424,7 +424,8 @@ class pil_build_ext(build_ext):
             best_path = None
             for name in os.listdir(program_files):
                 if name.startswith('OpenJPEG '):
-                    version = tuple(int(x) for x in name[9:].strip().split('.'))
+                    version = tuple(int(x) for x in
+                                    name[9:].strip().split('.'))
                     if version > best_version:
                         best_version = version
                         best_path = os.path.join(program_files, name)
@@ -501,7 +502,8 @@ class pil_build_ext(build_ext):
                 # possible.
                 _add_directory(self.compiler.include_dirs, best_path, 0)
                 feature.jpeg2000 = 'openjp2'
-                feature.openjpeg_version = '.'.join(str(x) for x in best_version)
+                feature.openjpeg_version = '.'.join(str(x) for x in
+                                                    best_version)
 
         if feature.want('imagequant'):
             _dbg('Looking for imagequant')
@@ -516,7 +518,8 @@ class pil_build_ext(build_ext):
             if _find_include_file(self, 'tiff.h'):
                 if _find_library_file(self, "tiff"):
                     feature.tiff = "tiff"
-                if sys.platform == "win32" and _find_library_file(self, "libtiff"):
+                if (sys.platform == "win32" and
+                        _find_library_file(self, "libtiff")):
                     feature.tiff = "libtiff"
                 if (sys.platform == "darwin" and
                         _find_library_file(self, "libtiff")):
@@ -528,14 +531,16 @@ class pil_build_ext(build_ext):
                 # look for freetype2 include files
                 freetype_version = 0
                 for subdir in self.compiler.include_dirs:
-                    _dbg('Checking for include file %s in %s', ("ft2build.h", subdir))
+                    _dbg('Checking for include file %s in %s',
+                         ("ft2build.h", subdir))
                     if os.path.isfile(os.path.join(subdir, "ft2build.h")):
                         _dbg('Found %s in %s', ("ft2build.h", subdir))
                         freetype_version = 21
                         subdir = os.path.join(subdir, "freetype2")
                         break
                     subdir = os.path.join(subdir, "freetype2")
-                    _dbg('Checking for include file %s in %s', ("ft2build.h", subdir))
+                    _dbg('Checking for include file %s in %s',
+                         ("ft2build.h", subdir))
                     if os.path.isfile(os.path.join(subdir, "ft2build.h")):
                         _dbg('Found %s in %s', ("ft2build.h", subdir))
                         freetype_version = 21

src/PIL/BmpImagePlugin.py

@@ -60,7 +60,14 @@ class BmpImageFile(ImageFile.ImageFile):
     format_description = "Windows Bitmap"
     format = "BMP"
     # --------------------------------------------------- BMP Compression values
-    COMPRESSIONS = {'RAW': 0, 'RLE8': 1, 'RLE4': 2, 'BITFIELDS': 3, 'JPEG': 4, 'PNG': 5}
+    COMPRESSIONS = {
+        'RAW': 0,
+        'RLE8': 1,
+        'RLE4': 2,
+        'BITFIELDS': 3,
+        'JPEG': 4,
+        'PNG': 5
+    }
     RAW, RLE8, RLE4, BITFIELDS, JPEG, PNG = 0, 1, 2, 3, 4, 5
 
     def _bitmap(self, header=0, offset=0):
@@ -69,10 +76,13 @@ class BmpImageFile(ImageFile.ImageFile):
         if header:
             seek(header)
         file_info = {}
-        file_info['header_size'] = i32(read(4))  # read bmp header size @offset 14 (this is part of the header size)
+        # read bmp header size @offset 14 (this is part of the header size)
+        file_info['header_size'] = i32(read(4))
         file_info['direction'] = -1
         # --------------------- If requested, read header at a specific position
-        header_data = ImageFile._safe_read(self.fp, file_info['header_size'] - 4)  # read the rest of the bmp header, without its size
+        # read the rest of the bmp header, without its size
+        header_data = ImageFile._safe_read(self.fp,
+                                           file_info['header_size'] - 4)
         # --------------------------------------------------- IBM OS/2 Bitmap v1
         # ------ This format has different offsets because of width/height types
         if file_info['header_size'] == 12:
@@ -88,12 +98,16 @@ class BmpImageFile(ImageFile.ImageFile):
                 file_info['y_flip'] = i8(header_data[7]) == 0xff
                 file_info['direction'] = 1 if file_info['y_flip'] else -1
                 file_info['width'] = i32(header_data[0:4])
-                file_info['height'] = i32(header_data[4:8]) if not file_info['y_flip'] else 2**32 - i32(header_data[4:8])
+                file_info['height'] = (i32(header_data[4:8])
+                                       if not file_info['y_flip']
+                                       else 2**32 - i32(header_data[4:8]))
                 file_info['planes'] = i16(header_data[8:10])
                 file_info['bits'] = i16(header_data[10:12])
                 file_info['compression'] = i32(header_data[12:16])
-                file_info['data_size'] = i32(header_data[16:20])  # byte size of pixel data
-                file_info['pixels_per_meter'] = (i32(header_data[20:24]), i32(header_data[24:28]))
+                # byte size of pixel data
+                file_info['data_size'] = i32(header_data[16:20])
+                file_info['pixels_per_meter'] = (i32(header_data[20:24]),
+                                                 i32(header_data[24:28]))
                 file_info['colors'] = i32(header_data[28:32])
                 file_info['palette_padding'] = 4
                 self.info["dpi"] = tuple(
@@ -101,21 +115,32 @@ class BmpImageFile(ImageFile.ImageFile):
                         file_info['pixels_per_meter']))
                 if file_info['compression'] == self.BITFIELDS:
                     if len(header_data) >= 52:
-                        for idx, mask in enumerate(['r_mask', 'g_mask', 'b_mask', 'a_mask']):
+                        for idx, mask in enumerate(['r_mask',
+                                                    'g_mask',
+                                                    'b_mask',
+                                                    'a_mask']):
                             file_info[mask] = i32(header_data[36+idx*4:40+idx*4])
                     else:
-                        # 40 byte headers only have the three components in the bitfields masks,
+                        # 40 byte headers only have the three components in the
+                        # bitfields masks,
                         # ref: https://msdn.microsoft.com/en-us/library/windows/desktop/dd183376(v=vs.85).aspx
                         # See also https://github.com/python-pillow/Pillow/issues/1293
-                        # There is a 4th component in the RGBQuad, in the alpha location, but it
-                        # is listed as a reserved component, and it is not generally an alpha channel
+                        # There is a 4th component in the RGBQuad, in the alpha
+                        # location, but it is listed as a reserved component,
+                        # and it is not generally an alpha channel
                         file_info['a_mask'] = 0x0
                         for mask in ['r_mask', 'g_mask', 'b_mask']:
                             file_info[mask] = i32(read(4))
-                    file_info['rgb_mask'] = (file_info['r_mask'], file_info['g_mask'], file_info['b_mask'])
-                    file_info['rgba_mask'] = (file_info['r_mask'], file_info['g_mask'], file_info['b_mask'], file_info['a_mask'])
+                    file_info['rgb_mask'] = (file_info['r_mask'],
+                                             file_info['g_mask'],
+                                             file_info['b_mask'])
+                    file_info['rgba_mask'] = (file_info['r_mask'],
+                                              file_info['g_mask'],
+                                              file_info['b_mask'],
+                                              file_info['a_mask'])
         else:
-            raise IOError("Unsupported BMP header type (%d)" % file_info['header_size'])
+            raise IOError("Unsupported BMP header type (%d)" %
+                          file_info['header_size'])
         # ------------------ Special case : header is reported 40, which
         # ---------------------- is shorter than real size for bpp >= 16
         self.size = file_info['width'], file_info['height']
@@ -127,11 +152,15 @@ class BmpImageFile(ImageFile.ImageFile):
         # ----------------------- Check bit depth for unusual unsupported values
         self.mode, raw_mode = BIT2MODE.get(file_info['bits'], (None, None))
         if self.mode is None:
-            raise IOError("Unsupported BMP pixel depth (%d)" % file_info['bits'])
+            raise IOError("Unsupported BMP pixel depth (%d)"
+                          % file_info['bits'])
         # ----------------- Process BMP with Bitfields compression (not palette)
         if file_info['compression'] == self.BITFIELDS:
             SUPPORTED = {
-                32: [(0xff0000, 0xff00, 0xff, 0x0), (0xff0000, 0xff00, 0xff, 0xff000000), (0x0, 0x0, 0x0, 0x0), (0xff000000, 0xff0000, 0xff00, 0x0)],
+                32: [(0xff0000, 0xff00, 0xff, 0x0),
+                     (0xff0000, 0xff00, 0xff, 0xff000000),
+                     (0x0, 0x0, 0x0, 0x0),
+                     (0xff000000, 0xff0000, 0xff00, 0x0)],
                 24: [(0xff0000, 0xff00, 0xff)],
                 16: [(0xf800, 0x7e0, 0x1f), (0x7c00, 0x3e0, 0x1f)]
             }
@@ -145,11 +174,15 @@ class BmpImageFile(ImageFile.ImageFile):
                 (16, (0x7c00, 0x3e0, 0x1f)): "BGR;15"
             }
             if file_info['bits'] in SUPPORTED:
-                if file_info['bits'] == 32 and file_info['rgba_mask'] in SUPPORTED[file_info['bits']]:
+                if file_info['bits'] == 32 and \
+                   file_info['rgba_mask'] in SUPPORTED[file_info['bits']]:
                     raw_mode = MASK_MODES[(file_info['bits'], file_info['rgba_mask'])]
                     self.mode = "RGBA" if raw_mode in ("BGRA",) else self.mode
-                elif file_info['bits'] in (24, 16) and file_info['rgb_mask'] in SUPPORTED[file_info['bits']]:
-                    raw_mode = MASK_MODES[(file_info['bits'], file_info['rgb_mask'])]
+                elif (file_info['bits'] in (24, 16) and
+                      file_info['rgb_mask'] in SUPPORTED[file_info['bits']]):
+                    raw_mode = MASK_MODES[
+                        (file_info['bits'], file_info['rgb_mask'])
+                    ]
                 else:
                     raise IOError("Unsupported BMP bitfields layout")
             else:
@@ -158,17 +191,20 @@ class BmpImageFile(ImageFile.ImageFile):
             if file_info['bits'] == 32 and header == 22:  # 32-bit .cur offset
                 raw_mode, self.mode = "BGRA", "RGBA"
         else:
-            raise IOError("Unsupported BMP compression (%d)" % file_info['compression'])
+            raise IOError("Unsupported BMP compression (%d)" %
+                          file_info['compression'])
         # ---------------- Once the header is processed, process the palette/LUT
         if self.mode == "P":  # Paletted for 1, 4 and 8 bit images
             # ----------------------------------------------------- 1-bit images
             if not (0 < file_info['colors'] <= 65536):
-                raise IOError("Unsupported BMP Palette size (%d)" % file_info['colors'])
+                raise IOError("Unsupported BMP Palette size (%d)" %
+                              file_info['colors'])
             else:
                 padding = file_info['palette_padding']
                 palette = read(padding * file_info['colors'])
                 greyscale = True
-                indices = (0, 255) if file_info['colors'] == 2 else list(range(file_info['colors']))
+                indices = (0, 255) if file_info['colors'] == 2 else \
+                    list(range(file_info['colors']))
                 # ------------------ Check if greyscale and ignore palette if so
                 for ind, val in enumerate(indices):
                     rgb = palette[ind*padding:ind*padding + 3]
@@ -180,13 +216,19 @@ class BmpImageFile(ImageFile.ImageFile):
                     raw_mode = self.mode
                 else:
                     self.mode = "P"
-                    self.palette = ImagePalette.raw("BGRX" if padding == 4 else "BGR", palette)
+                    self.palette = ImagePalette.raw(
+                        "BGRX" if padding == 4 else "BGR", palette)
 
         # ----------------------------- Finally set the tile data for the plugin
         self.info['compression'] = file_info['compression']
-        self.tile = [('raw', (0, 0, file_info['width'], file_info['height']), offset or self.fp.tell(),
-                      (raw_mode, ((file_info['width'] * file_info['bits'] + 31) >> 3) & (~3), file_info['direction'])
-                      )]
+        self.tile = [
+            ('raw',
+             (0, 0, file_info['width'], file_info['height']),
+             offset or self.fp.tell(),
+             (raw_mode,
+              ((file_info['width'] * file_info['bits'] + 31) >> 3) & (~3),
+              file_info['direction']))
+        ]
 
     def _open(self):
         """ Open file, check magic number and read header """

src/PIL/ContainerIO.py

@@ -107,10 +107,10 @@ class ContainerIO(object):
 
         :returns: A list of 8-bit strings.
         """
-        l = []
+        lines = []
         while True:
             s = self.readline()
             if not s:
                 break
-            l.append(s)
-        return l
+            lines.append(s)
+        return lines

src/PIL/DdsImagePlugin.py

@@ -142,7 +142,8 @@ class DdsImageFile(ImageFile.ImageFile):
             # ignoring flags which pertain to volume textures and cubemaps
             dxt10 = BytesIO(self.fp.read(20))
             dxgi_format, dimension = struct.unpack("<II", dxt10.read(8))
-            if dxgi_format in (DXGI_FORMAT_BC7_TYPELESS, DXGI_FORMAT_BC7_UNORM):
+            if dxgi_format in (DXGI_FORMAT_BC7_TYPELESS,
+                               DXGI_FORMAT_BC7_UNORM):
                 self.pixel_format = "BC7"
                 n = 7
             elif dxgi_format == DXGI_FORMAT_BC7_UNORM_SRGB:

src/PIL/EpsImagePlugin.py

@@ -26,7 +26,6 @@ import os
 import sys
 from . import Image, ImageFile
 from ._binary import i32le as i32
-from ._util import py3
 
 __version__ = "0.5"
 
@@ -206,16 +205,7 @@ class EpsImageFile(ImageFile.ImageFile):
 
         # Rewrap the open file pointer in something that will
         # convert line endings and decode to latin-1.
-        try:
-            if py3:
-                # Python3, can use bare open command.
-                fp = open(self.fp.name, "Ur", encoding='latin-1')
-            else:
-                # Python2, no encoding conversion necessary
-                fp = open(self.fp.name, "Ur")
-        except:
-            # Expect this for bytesio/stringio
-            fp = PSFile(self.fp)
+        fp = PSFile(self.fp)
 
         # go to offset - start of "%!PS"
         fp.seek(offset)

src/PIL/FtexImagePlugin.py

@@ -9,7 +9,8 @@ Full text of the CC0 license:
 Independence War 2: Edge Of Chaos - Texture File Format - 16 October 2001
 
 The textures used for 3D objects in Independence War 2: Edge Of Chaos are in a
-packed custom format called FTEX. This file format uses file extensions FTC and FTU.
+packed custom format called FTEX. This file format uses file extensions FTC
+and FTU.
 * FTC files are compressed textures (using standard texture compression).
 * FTU files are not compressed.
 Texture File Format
@@ -24,18 +25,21 @@ Where:
 * The "magic" number is "FTEX".
 * "width" and "height" are the dimensions of the texture.
 * "mipmap_count" is the number of mipmaps in the texture.
-* "format_count" is the number of texture formats (different versions of the same texture) in this file.
+* "format_count" is the number of texture formats (different versions of the
+same texture) in this file.
 
 {format_directory} = format_count * { u32:format, u32:where }
 
-The format value is 0 for DXT1 compressed textures and 1 for 24-bit RGB uncompressed textures.
+The format value is 0 for DXT1 compressed textures and 1 for 24-bit RGB
+uncompressed textures.
 The texture data for a format starts at the position "where" in the file.
 
 Each set of texture data in the file has the following structure:
 {data} = format_count * { u32:mipmap_size, mipmap_size * { u8 } }
-* "mipmap_size" is the number of bytes in that mip level. For compressed textures this is the
-size of the texture data compressed with DXT1. For 24 bit uncompressed textures, this is 3 * width * height.
-Following this are the image bytes for that mipmap level.
+* "mipmap_size" is the number of bytes in that mip level. For compressed
+textures this is the size of the texture data compressed with DXT1. For 24 bit
+uncompressed textures, this is 3 * width * height. Following this are the image
+bytes for that mipmap level.
 
 Note: All data is stored in little-Endian (Intel) byte order.
 """
@@ -62,7 +66,8 @@ class FtexImageFile(ImageFile.ImageFile):
 
         self.mode = "RGB"
 
-        # Only support single-format files. I don't know of any multi-format file.
+        # Only support single-format files.
+        # I don't know of any multi-format file.
         assert format_count == 1
 
         format, where = struct.unpack("<2i", self.fp.read(8))
@@ -77,7 +82,8 @@ class FtexImageFile(ImageFile.ImageFile):
         elif format == FORMAT_UNCOMPRESSED:
             self.tile = [("raw", (0, 0) + self.size, 0, ('RGB', 0, 1))]
         else:
-            raise ValueError("Invalid texture compression format: %r" % (format))
+            raise ValueError(
+                "Invalid texture compression format: %r" % (format))
 
         self.fp.close()
         self.fp = BytesIO(data)

src/PIL/GbrImagePlugin.py

@@ -29,7 +29,8 @@ from ._binary import i32be as i32
 
 
 def _accept(prefix):
-    return len(prefix) >= 8 and i32(prefix[:4]) >= 20 and i32(prefix[4:8]) in (1, 2)
+    return len(prefix) >= 8 and \
+           i32(prefix[:4]) >= 20 and i32(prefix[4:8]) in (1, 2)
 
 
 ##
@@ -54,7 +55,8 @@ class GbrImageFile(ImageFile.ImageFile):
         if width <= 0 or height <= 0:
             raise SyntaxError("not a GIMP brush")
         if color_depth not in (1, 4):
-            raise SyntaxError("Unsupported GIMP brush color depth: %s" % color_depth)
+            raise SyntaxError(
+                "Unsupported GIMP brush color depth: %s" % color_depth)
 
         if version == 1:
             comment_length = header_size-20

src/PIL/GifImagePlugin.py

@@ -397,7 +397,8 @@ def _write_multiple_frames(im, fp, palette):
 
     im_frames = []
     frame_count = 0
-    for imSequence in itertools.chain([im], im.encoderinfo.get("append_images", [])):
+    for imSequence in itertools.chain([im],
+                                      im.encoderinfo.get("append_images", [])):
         for im_frame in ImageSequence.Iterator(imSequence):
             # a copy is required here since seek can still mutate the image
             im_frame = _normalize_mode(im_frame.copy())
@@ -413,17 +414,19 @@ def _write_multiple_frames(im, fp, palette):
             if im_frames:
                 # delta frame
                 previous = im_frames[-1]
-                if _get_palette_bytes(im_frame) == _get_palette_bytes(previous['im']):
+                if _get_palette_bytes(im_frame) == \
+                   _get_palette_bytes(previous['im']):
                     delta = ImageChops.subtract_modulo(im_frame,
                                                        previous['im'])
                 else:
-                    delta = ImageChops.subtract_modulo(im_frame.convert('RGB'),
-                                                       previous['im'].convert('RGB'))
+                    delta = ImageChops.subtract_modulo(
+                        im_frame.convert('RGB'), previous['im'].convert('RGB'))
                 bbox = delta.getbbox()
                 if not bbox:
                     # This frame is identical to the previous frame
                     if duration:
-                        previous['encoderinfo']['duration'] += encoderinfo['duration']
+                        previous['encoderinfo']['duration'] += \
+                            encoderinfo['duration']
                     continue
             else:
                 bbox = None
@@ -525,7 +528,8 @@ def _write_local_header(fp, im, offset, flags):
                  o8(transparency) +       # transparency index
                  o8(0))
 
-    if "comment" in im.encoderinfo and 1 <= len(im.encoderinfo["comment"]) <= 255:
+    if "comment" in im.encoderinfo and \
+       1 <= len(im.encoderinfo["comment"]) <= 255:
         fp.write(b"!" +
                  o8(254) +                # extension intro
                  o8(len(im.encoderinfo["comment"])) +
@@ -543,7 +547,6 @@ def _write_local_header(fp, im, offset, flags):
                  o8(0))
     include_color_table = im.encoderinfo.get('include_color_table')
     if include_color_table:
-        palette = im.encoderinfo.get("palette", None)
         palette_bytes = _get_palette_bytes(im)
         color_table_size = _get_color_table_size(palette_bytes)
         if color_table_size:
@@ -692,7 +695,8 @@ def _get_global_header(im, info):
     for extensionKey in ["transparency", "duration", "loop", "comment"]:
         if info and extensionKey in info:
             if ((extensionKey == "duration" and info[extensionKey] == 0) or
-               (extensionKey == "comment" and not (1 <= len(info[extensionKey]) <= 255))):
+                (extensionKey == "comment" and
+                 not (1 <= len(info[extensionKey]) <= 255))):
                 continue
             version = b"89a"
             break

src/PIL/ImageCms.py

@@ -305,10 +305,10 @@ def profileToProfile(
     :param renderingIntent: Integer (0-3) specifying the rendering intent you
         wish to use for the transform
 
-            INTENT_PERCEPTUAL            = 0 (DEFAULT) (ImageCms.INTENT_PERCEPTUAL)
-            INTENT_RELATIVE_COLORIMETRIC = 1 (ImageCms.INTENT_RELATIVE_COLORIMETRIC)
-            INTENT_SATURATION            = 2 (ImageCms.INTENT_SATURATION)
-            INTENT_ABSOLUTE_COLORIMETRIC = 3 (ImageCms.INTENT_ABSOLUTE_COLORIMETRIC)
+            ImageCms.INTENT_PERCEPTUAL            = 0 (DEFAULT)
+            ImageCms.INTENT_RELATIVE_COLORIMETRIC = 1
+            ImageCms.INTENT_SATURATION            = 2
+            ImageCms.INTENT_ABSOLUTE_COLORIMETRIC = 3
 
         see the pyCMS documentation for details on rendering intents and what
         they do.
@@ -424,10 +424,10 @@ def buildTransform(
     :param renderingIntent: Integer (0-3) specifying the rendering intent you
         wish to use for the transform
 
-            INTENT_PERCEPTUAL            = 0 (DEFAULT) (ImageCms.INTENT_PERCEPTUAL)
-            INTENT_RELATIVE_COLORIMETRIC = 1 (ImageCms.INTENT_RELATIVE_COLORIMETRIC)
-            INTENT_SATURATION            = 2 (ImageCms.INTENT_SATURATION)
-            INTENT_ABSOLUTE_COLORIMETRIC = 3 (ImageCms.INTENT_ABSOLUTE_COLORIMETRIC)
+            ImageCms.INTENT_PERCEPTUAL            = 0 (DEFAULT)
+            ImageCms.INTENT_RELATIVE_COLORIMETRIC = 1
+            ImageCms.INTENT_SATURATION            = 2
+            ImageCms.INTENT_ABSOLUTE_COLORIMETRIC = 3
 
         see the pyCMS documentation for details on rendering intents and what
         they do.
@@ -512,20 +512,20 @@ def buildProofTransform(
     :param renderingIntent: Integer (0-3) specifying the rendering intent you
         wish to use for the input->proof (simulated) transform
 
-            INTENT_PERCEPTUAL            = 0 (DEFAULT) (ImageCms.INTENT_PERCEPTUAL)
-            INTENT_RELATIVE_COLORIMETRIC = 1 (ImageCms.INTENT_RELATIVE_COLORIMETRIC)
-            INTENT_SATURATION            = 2 (ImageCms.INTENT_SATURATION)
-            INTENT_ABSOLUTE_COLORIMETRIC = 3 (ImageCms.INTENT_ABSOLUTE_COLORIMETRIC)
+            ImageCms.INTENT_PERCEPTUAL            = 0 (DEFAULT)
+            ImageCms.INTENT_RELATIVE_COLORIMETRIC = 1
+            ImageCms.INTENT_SATURATION            = 2
+            ImageCms.INTENT_ABSOLUTE_COLORIMETRIC = 3
 
         see the pyCMS documentation for details on rendering intents and what
         they do.
-    :param proofRenderingIntent: Integer (0-3) specifying the rendering intent you
-        wish to use for proof->output transform
+    :param proofRenderingIntent: Integer (0-3) specifying the rendering intent
+        you wish to use for proof->output transform
 
-            INTENT_PERCEPTUAL            = 0 (DEFAULT) (ImageCms.INTENT_PERCEPTUAL)
-            INTENT_RELATIVE_COLORIMETRIC = 1 (ImageCms.INTENT_RELATIVE_COLORIMETRIC)
-            INTENT_SATURATION            = 2 (ImageCms.INTENT_SATURATION)
-            INTENT_ABSOLUTE_COLORIMETRIC = 3 (ImageCms.INTENT_ABSOLUTE_COLORIMETRIC)
+            ImageCms.INTENT_PERCEPTUAL            = 0 (DEFAULT)
+            ImageCms.INTENT_RELATIVE_COLORIMETRIC = 1
+            ImageCms.INTENT_SATURATION            = 2
+            ImageCms.INTENT_ABSOLUTE_COLORIMETRIC = 3
 
         see the pyCMS documentation for details on rendering intents and what
         they do.
@@ -875,10 +875,10 @@ def getDefaultIntent(profile):
     :returns: Integer 0-3 specifying the default rendering intent for this
         profile.
 
-            INTENT_PERCEPTUAL            = 0 (DEFAULT) (ImageCms.INTENT_PERCEPTUAL)
-            INTENT_RELATIVE_COLORIMETRIC = 1 (ImageCms.INTENT_RELATIVE_COLORIMETRIC)
-            INTENT_SATURATION            = 2 (ImageCms.INTENT_SATURATION)
-            INTENT_ABSOLUTE_COLORIMETRIC = 3 (ImageCms.INTENT_ABSOLUTE_COLORIMETRIC)
+            ImageCms.INTENT_PERCEPTUAL            = 0 (DEFAULT)
+            ImageCms.INTENT_RELATIVE_COLORIMETRIC = 1
+            ImageCms.INTENT_SATURATION            = 2
+            ImageCms.INTENT_ABSOLUTE_COLORIMETRIC = 3
 
         see the pyCMS documentation for details on rendering intents and what
             they do.
@@ -913,15 +913,15 @@ def isIntentSupported(profile, intent, direction):
     :param intent: Integer (0-3) specifying the rendering intent you wish to
         use with this profile
 
-            INTENT_PERCEPTUAL            = 0 (DEFAULT) (ImageCms.INTENT_PERCEPTUAL)
-            INTENT_RELATIVE_COLORIMETRIC = 1 (ImageCms.INTENT_RELATIVE_COLORIMETRIC)
-            INTENT_SATURATION            = 2 (ImageCms.INTENT_SATURATION)
-            INTENT_ABSOLUTE_COLORIMETRIC = 3 (ImageCms.INTENT_ABSOLUTE_COLORIMETRIC)
+            ImageCms.INTENT_PERCEPTUAL            = 0 (DEFAULT)
+            ImageCms.INTENT_RELATIVE_COLORIMETRIC = 1
+            ImageCms.INTENT_SATURATION            = 2
+            ImageCms.INTENT_ABSOLUTE_COLORIMETRIC = 3
 
         see the pyCMS documentation for details on rendering intents and what
             they do.
-    :param direction: Integer specifying if the profile is to be used for input,
-        output, or proof
+    :param direction: Integer specifying if the profile is to be used for
+        input, output, or proof
 
             INPUT  = 0 (or use ImageCms.DIRECTION_INPUT)
             OUTPUT = 1 (or use ImageCms.DIRECTION_OUTPUT)

src/PIL/ImageDraw.py

@@ -138,7 +138,7 @@ class ImageDraw(object):
         ink, fill = self._getink(outline, fill)
         if fill is not None:
             self.draw.draw_chord(xy, start, end, fill, 1)
-        if ink is not None:
+        if ink is not None and ink != fill:
             self.draw.draw_chord(xy, start, end, ink, 0)
 
     def ellipse(self, xy, fill=None, outline=None):
@@ -146,7 +146,7 @@ class ImageDraw(object):
         ink, fill = self._getink(outline, fill)
         if fill is not None:
             self.draw.draw_ellipse(xy, fill, 1)
-        if ink is not None:
+        if ink is not None and ink != fill:
             self.draw.draw_ellipse(xy, ink, 0)
 
     def line(self, xy, fill=None, width=0):
@@ -161,7 +161,7 @@ class ImageDraw(object):
         ink, fill = self._getink(outline, fill)
         if fill is not None:
             self.draw.draw_outline(shape, fill, 1)
-        if ink is not None:
+        if ink is not None and ink != fill:
             self.draw.draw_outline(shape, ink, 0)
 
     def pieslice(self, xy, start, end, fill=None, outline=None):
@@ -169,7 +169,7 @@ class ImageDraw(object):
         ink, fill = self._getink(outline, fill)
         if fill is not None:
             self.draw.draw_pieslice(xy, start, end, fill, 1)
-        if ink is not None:
+        if ink is not None and ink != fill:
             self.draw.draw_pieslice(xy, start, end, ink, 0)
 
     def point(self, xy, fill=None):
@@ -183,7 +183,7 @@ class ImageDraw(object):
         ink, fill = self._getink(outline, fill)
         if fill is not None:
             self.draw.draw_polygon(xy, fill, 1)
-        if ink is not None:
+        if ink is not None and ink != fill:
             self.draw.draw_polygon(xy, ink, 0)
 
     def rectangle(self, xy, fill=None, outline=None):
@@ -191,7 +191,7 @@ class ImageDraw(object):
         ink, fill = self._getink(outline, fill)
         if fill is not None:
             self.draw.draw_rectangle(xy, fill, 1)
-        if ink is not None:
+        if ink is not None and ink != fill:
             self.draw.draw_rectangle(xy, ink, 0)
 
     def _multiline_check(self, text):
@@ -217,7 +217,8 @@ class ImageDraw(object):
             ink = fill
         if ink is not None:
             try:
-                mask, offset = font.getmask2(text, self.fontmode, *args, **kwargs)
+                mask, offset = font.getmask2(text, self.fontmode,
+                                             *args, **kwargs)
                 xy = xy[0] + offset[0], xy[1] + offset[1]
             except AttributeError:
                 try:
@@ -384,4 +385,4 @@ def _color_diff(rgb1, rgb2):
     """
     Uses 1-norm distance to calculate difference between two rgb values.
     """
-    return abs(rgb1[0]-rgb2[0]) +  abs(rgb1[1]-rgb2[1]) +  abs(rgb1[2]-rgb2[2])
+    return abs(rgb1[0]-rgb2[0]) + abs(rgb1[1]-rgb2[1]) + abs(rgb1[2]-rgb2[2])

src/PIL/ImageEnhance.py

@@ -51,7 +51,8 @@ class Color(_Enhance):
         if 'A' in image.getbands():
             self.intermediate_mode = 'LA'
 
-        self.degenerate = image.convert(self.intermediate_mode).convert(image.mode)
+        self.degenerate = image.convert(
+            self.intermediate_mode).convert(image.mode)
 
 
 class Contrast(_Enhance):

src/PIL/ImageFile.py

@@ -166,8 +166,9 @@ class ImageFile(Image.Image):
         if use_mmap:
             # try memory mapping
             decoder_name, extents, offset, args = self.tile[0]
-            if decoder_name == "raw" and len(args) >= 3 and args[0] == self.mode \
-               and args[0] in Image._MAPMODES:
+            if decoder_name == "raw" and len(args) >= 3 and \
+               args[0] == self.mode and \
+               args[0] in Image._MAPMODES:
                 try:
                     if hasattr(Image.core, "map"):
                         # use built-in mapper  WIN32 only
@@ -180,12 +181,14 @@ class ImageFile(Image.Image):
                         # use mmap, if possible
                         import mmap
                         with open(self.filename, "r") as fp:
-                            self.map = mmap.mmap(fp.fileno(), 0, access=mmap.ACCESS_READ)
+                            self.map = mmap.mmap(fp.fileno(), 0,
+                                                 access=mmap.ACCESS_READ)
                         self.im = Image.core.map_buffer(
-                            self.map, self.size, decoder_name, extents, offset, args
-                            )
+                            self.map, self.size, decoder_name, extents,
+                            offset, args)
                     readonly = 1
-                    # After trashing self.im, we might need to reload the palette data.
+                    # After trashing self.im,
+                    # we might need to reload the palette data.
                     if self.palette:
                         self.palette.dirty = 1
                 except (AttributeError, EnvironmentError, ImportError):
@@ -217,7 +220,8 @@ class ImageFile(Image.Image):
                         while True:
                             try:
                                 s = read(self.decodermaxblock)
-                            except (IndexError, struct.error):  # truncated png/gif
+                            except (IndexError, struct.error):
+                                # truncated png/gif
                                 if LOAD_TRUNCATED_IMAGES:
                                     break
                                 else:
@@ -229,7 +233,8 @@ class ImageFile(Image.Image):
                                 else:
                                     self.tile = []
                                     raise IOError("image file is truncated "
-                                                  "(%d bytes not processed)" % len(b))
+                                                  "(%d bytes not processed)" %
+                                                  len(b))
 
                             b = b + s
                             n, err_code = decoder.decode(b)
@@ -588,10 +593,12 @@ class PyDecoder(object):
         """
         Override to perform the decoding process.
 
-        :param buffer: A bytes object with the data to be decoded.  If `handles_eof`
-             is set, then `buffer` will be empty and `self.fd` will be set.
-        :returns: A tuple of (bytes consumed, errcode). If finished with decoding
-             return <0 for the bytes consumed. Err codes are from `ERRORS`
+        :param buffer: A bytes object with the data to be decoded.
+            If `handles_eof` is set, then `buffer` will be empty and `self.fd`
+            will be set.
+        :returns: A tuple of (bytes consumed, errcode).
+            If finished with decoding return <0 for the bytes consumed.
+            Err codes are from `ERRORS`
         """
         raise NotImplementedError()
 
@@ -650,8 +657,8 @@ class PyDecoder(object):
         Convenience method to set the internal image from a stream of raw data
 
         :param data: Bytes to be set
-        :param rawmode: The rawmode to be used for the decoder. If not specified,
-             it will default to the mode of the image
+        :param rawmode: The rawmode to be used for the decoder.
+            If not specified, it will default to the mode of the image
         :returns: None
         """
 

src/PIL/ImageFont.py

@@ -141,7 +141,8 @@ class FreeTypeFont(object):
         self.layout_engine = layout_engine
 
         if isPath(font):
-            self.font = core.getfont(font, size, index, encoding, layout_engine=layout_engine)
+            self.font = core.getfont(font, size, index, encoding,
+                                     layout_engine=layout_engine)
         else:
             self.font_bytes = font.read()
             self.font = core.getfont(
@@ -175,9 +176,11 @@ class FreeTypeFont(object):
         return self.font.getsize(text)[1]
 
     def getmask(self, text, mode="", direction=None, features=None):
-        return self.getmask2(text, mode, direction=direction, features=features)[0]
+        return self.getmask2(text, mode, direction=direction,
+                             features=features)[0]
 
-    def getmask2(self, text, mode="", fill=Image.core.fill, direction=None, features=None, *args, **kwargs):
+    def getmask2(self, text, mode="", fill=Image.core.fill, direction=None,
+                 features=None, *args, **kwargs):
         size, offset = self.font.getsize(text, direction, features)
         im = fill("L", size, 0)
         self.font.render(text, im.id, mode == "1", direction, features)
@@ -194,12 +197,13 @@ class FreeTypeFont(object):
 
         :return: A FreeTypeFont object.
         """
-        return FreeTypeFont(font=self.path if font is None else font,
-                            size=self.size if size is None else size,
-                            index=self.index if index is None else index,
-                            encoding=self.encoding if encoding is None else encoding,
-                            layout_engine=self.layout_engine if layout_engine is None else layout_engine
-                            )
+        return FreeTypeFont(
+            font=self.path if font is None else font,
+            size=self.size if size is None else size,
+            index=self.index if index is None else index,
+            encoding=self.encoding if encoding is None else encoding,
+            layout_engine=self.layout_engine if layout_engine is None else layout_engine
+        )
 
 
 class TransposedFont(object):
@@ -303,12 +307,16 @@ def truetype(font=None, size=10, index=0, encoding="",
                 for walkfilename in walkfilenames:
                     if ext and walkfilename == ttf_filename:
                         fontpath = os.path.join(walkroot, walkfilename)
-                        return FreeTypeFont(fontpath, size, index, encoding, layout_engine)
-                    elif not ext and os.path.splitext(walkfilename)[0] == ttf_filename:
+                        return FreeTypeFont(fontpath, size, index,
+                                            encoding, layout_engine)
+                    elif (not ext and
+                          os.path.splitext(walkfilename)[0] == ttf_filename):
                         fontpath = os.path.join(walkroot, walkfilename)
                         if os.path.splitext(fontpath)[1] == '.ttf':
-                            return FreeTypeFont(fontpath, size, index, encoding, layout_engine)
-                        if not ext and first_font_with_a_different_extension is None:
+                            return FreeTypeFont(fontpath, size, index,
+                                                encoding, layout_engine)
+                        if not ext \
+                           and first_font_with_a_different_extension is None:
                             first_font_with_a_different_extension = fontpath
         if first_font_with_a_different_extension:
             return FreeTypeFont(first_font_with_a_different_extension, size,

src/PIL/ImageMode.py

@@ -42,7 +42,8 @@ def getmode(mode):
         for m, (basemode, basetype, bands) in Image._MODEINFO.items():
             modes[m] = ModeDescriptor(m, bands, basemode, basetype)
         # extra experimental modes
-        modes["RGBa"] = ModeDescriptor("RGBa", ("R", "G", "B", "a"), "RGB", "L")
+        modes["RGBa"] = ModeDescriptor("RGBa",
+                                       ("R", "G", "B", "a"), "RGB", "L")
         modes["LA"] = ModeDescriptor("LA", ("L", "A"), "L", "L")
         modes["La"] = ModeDescriptor("La", ("L", "a"), "L", "L")
         modes["PA"] = ModeDescriptor("PA", ("P", "A"), "RGB", "L")

src/PIL/ImageOps.py

@@ -136,28 +136,87 @@ def autocontrast(image, cutoff=0, ignore=None):
     return _lut(image, lut)
 
 
-def colorize(image, black, white):
+def colorize(image, black, white, mid=None, blackpoint=0,
+             whitepoint=255, midpoint=127):
     """
-    Colorize grayscale image.  The **black** and **white**
-    arguments should be RGB tuples; this function calculates a color
-    wedge mapping all black pixels in the source image to the first
-    color, and all white pixels to the second color.
+    Colorize grayscale image.
+    This function calculates a color wedge which maps all black pixels in
+    the source image to the first color and all white pixels to the
+    second color. If **mid** is specified, it uses three-color mapping.
+    The **black** and **white** arguments should be RGB tuples or color names;
+    optionally you can use three-color mapping by also specifying **mid**.
+    Mapping positions for any of the colors can be specified
+    (e.g. **blackpoint**), where these parameters are the integer
+    value corresponding to where the corresponding color should be mapped.
+    These parameters must have logical order, such that
+    **blackpoint** <= **midpoint** <= **whitepoint** (if **mid** is specified).
 
     :param image: The image to colorize.
     :param black: The color to use for black input pixels.
     :param white: The color to use for white input pixels.
+    :param mid: The color to use for midtone input pixels.
+    :param blackpoint: an int value [0, 255] for the black mapping.
+    :param whitepoint: an int value [0, 255] for the white mapping.
+    :param midpoint: an int value [0, 255] for the midtone mapping.
     :return: An image.
     """
+
+    # Initial asserts
     assert image.mode == "L"
+    if mid is None:
+        assert 0 <= blackpoint <= whitepoint <= 255
+    else:
+        assert 0 <= blackpoint <= midpoint <= whitepoint <= 255
+
+    # Define colors from arguments
     black = _color(black, "RGB")
     white = _color(white, "RGB")
+    if mid is not None:
+        mid = _color(mid, "RGB")
+
+    # Empty lists for the mapping
     red = []
     green = []
     blue = []
-    for i in range(256):
-        red.append(black[0]+i*(white[0]-black[0])//255)
-        green.append(black[1]+i*(white[1]-black[1])//255)
-        blue.append(black[2]+i*(white[2]-black[2])//255)
+
+    # Create the low-end values
+    for i in range(0, blackpoint):
+        red.append(black[0])
+        green.append(black[1])
+        blue.append(black[2])
+
+    # Create the mapping (2-color)
+    if mid is None:
+
+        range_map = range(0, whitepoint - blackpoint)
+
+        for i in range_map:
+            red.append(black[0] + i * (white[0] - black[0]) // len(range_map))
+            green.append(black[1] + i * (white[1] - black[1]) // len(range_map))
+            blue.append(black[2] + i * (white[2] - black[2]) // len(range_map))
+
+    # Create the mapping (3-color)
+    else:
+
+        range_map1 = range(0, midpoint - blackpoint)
+        range_map2 = range(0, whitepoint - midpoint)
+
+        for i in range_map1:
+            red.append(black[0] + i * (mid[0] - black[0]) // len(range_map1))
+            green.append(black[1] + i * (mid[1] - black[1]) // len(range_map1))
+            blue.append(black[2] + i * (mid[2] - black[2]) // len(range_map1))
+        for i in range_map2:
+            red.append(mid[0] + i * (white[0] - mid[0]) // len(range_map2))
+            green.append(mid[1] + i * (white[1] - mid[1]) // len(range_map2))
+            blue.append(mid[2] + i * (white[2] - mid[2]) // len(range_map2))
+
+    # Create the high-end values
+    for i in range(0, 256 - whitepoint):
+        red.append(white[0])
+        green.append(white[1])
+        blue.append(white[2])
+
+    # Return converted image
     image = image.convert("RGB")
     return _lut(image, red + green + blue)
 

src/PIL/ImageQt.py

@@ -119,7 +119,8 @@ def align8to32(bytes, width, mode):
 
     new_data = []
     for i in range(len(bytes) // bytes_per_line):
-        new_data.append(bytes[i*bytes_per_line:(i+1)*bytes_per_line] + b'\x00' * extra_padding)
+        new_data.append(bytes[i*bytes_per_line:(i+1)*bytes_per_line]
+                        + b'\x00' * extra_padding)
 
     return b''.join(new_data)
 

src/PIL/ImageStat.py

@@ -110,11 +110,11 @@ class Stat(object):
         v = []
         for i in self.bands:
             s = 0
-            l = self.count[i]//2
+            half = self.count[i]//2
             b = i * 256
             for j in range(256):
                 s = s + self.h[b+j]
-                if s > l:
+                if s > half:
                     break
             v.append(j)
         return v

src/PIL/ImageTk.py

@@ -195,7 +195,8 @@ class PhotoImage(object):
                         # Pypy is using a ffi cdata element
                         # (Pdb) self.tk.interp
                         #  <cdata 'Tcl_Interp *' 0x3061b50>
-                        _imagingtk.tkinit(int(ffi.cast("uintptr_t", tk.interp)), 1)
+                        _imagingtk.tkinit(
+                            int(ffi.cast("uintptr_t", tk.interp)), 1)
                     else:
                         _imagingtk.tkinit(tk.interpaddr(), 1)
                 except AttributeError:

src/PIL/Jpeg2KImagePlugin.py

@@ -270,7 +270,8 @@ def _save(im, fp, filename):
 Image.register_open(Jpeg2KImageFile.format, Jpeg2KImageFile, _accept)
 Image.register_save(Jpeg2KImageFile.format, _save)
 
-Image.register_extensions(Jpeg2KImageFile.format, [".jp2", ".j2k", ".jpc", ".jpf", ".jpx", ".j2c"])
+Image.register_extensions(Jpeg2KImageFile.format,
+                          [".jp2", ".j2k", ".jpc", ".jpf", ".jpx", ".j2c"])
 
 Image.register_mime(Jpeg2KImageFile.format, 'image/jp2')
 Image.register_mime(Jpeg2KImageFile.format, 'image/jpx')

src/PIL/JpegImagePlugin.py

@@ -799,6 +799,7 @@ def jpeg_factory(fp=None, filename=None):
 Image.register_open(JpegImageFile.format, jpeg_factory, _accept)
 Image.register_save(JpegImageFile.format, _save)
 
-Image.register_extensions(JpegImageFile.format, [".jfif", ".jpe", ".jpg", ".jpeg"])
+Image.register_extensions(JpegImageFile.format,
+                          [".jfif", ".jpe", ".jpg", ".jpeg"])
 
 Image.register_mime(JpegImageFile.format, "image/jpeg")

src/PIL/MspImagePlugin.py

@@ -126,8 +126,9 @@ class MspDecoder(ImageFile.PyDecoder):
                     continue
                 row = self.fd.read(rowlen)
                 if len(row) != rowlen:
-                    raise IOError("Truncated MSP file, expected %d bytes on row %s",
-                                  (rowlen, x))
+                    raise IOError(
+                        "Truncated MSP file, expected %d bytes on row %s",
+                        (rowlen, x))
                 idx = 0
                 while idx < rowlen:
                     runtype = i8(row[idx])

src/PIL/PdfImagePlugin.py

@@ -98,7 +98,8 @@ def _save(im, fp, filename, save_all=False):
             try:
                 im_numberOfPages = im.n_frames
             except AttributeError:
-                # Image format does not have n_frames. It is a single frame image
+                # Image format does not have n_frames.
+                # It is a single frame image
                 pass
         numberOfPages += im_numberOfPages
         for i in range(im_numberOfPages):
@@ -115,9 +116,9 @@ def _save(im, fp, filename, save_all=False):
     for imSequence in ims:
         im_pages = ImageSequence.Iterator(imSequence) if save_all else [imSequence]
         for im in im_pages:
-            # FIXME: Should replace ASCIIHexDecode with RunLengthDecode (packbits)
-            # or LZWDecode (tiff/lzw compression).  Note that PDF 1.2 also supports
-            # Flatedecode (zip compression).
+            # FIXME: Should replace ASCIIHexDecode with RunLengthDecode
+            # (packbits) or LZWDecode (tiff/lzw compression).  Note that
+            # PDF 1.2 also supports Flatedecode (zip compression).
 
             bits = 8
             params = None
@@ -135,7 +136,12 @@ def _save(im, fp, filename, save_all=False):
             elif im.mode == "P":
                 filter = "ASCIIHexDecode"
                 palette = im.im.getpalette("RGB")
-                colorspace = [PdfParser.PdfName("Indexed"), PdfParser.PdfName("DeviceRGB"), 255, PdfParser.PdfBinary(palette)]
+                colorspace = [
+                    PdfParser.PdfName("Indexed"),
+                    PdfParser.PdfName("DeviceRGB"),
+                    255,
+                    PdfParser.PdfBinary(palette)
+                ]
                 procset = "ImageI"  # indexed color
             elif im.mode == "RGB":
                 filter = "DCTDecode"
@@ -166,7 +172,8 @@ def _save(im, fp, filename, save_all=False):
             elif filter == "FlateDecode":
                 ImageFile._save(im, op, [("zip", (0, 0)+im.size, 0, im.mode)])
             elif filter == "RunLengthDecode":
-                ImageFile._save(im, op, [("packbits", (0, 0)+im.size, 0, im.mode)])
+                ImageFile._save(im, op,
+                                [("packbits", (0, 0)+im.size, 0, im.mode)])
             else:
                 raise ValueError("unsupported PDF filter (%s)" % filter)
 
@@ -175,26 +182,37 @@ def _save(im, fp, filename, save_all=False):
 
             width, height = im.size
 
-            existing_pdf.write_obj(image_refs[pageNumber], stream=op.getvalue(),
-                Type=PdfParser.PdfName("XObject"),
-                Subtype=PdfParser.PdfName("Image"),
-                Width=width,  # * 72.0 / resolution,
-                Height=height,  # * 72.0 / resolution,
-                Filter=PdfParser.PdfName(filter),
-                BitsPerComponent=bits,
-                DecodeParams=params,
-                ColorSpace=colorspace)
+            existing_pdf.write_obj(image_refs[pageNumber],
+                                   stream=op.getvalue(),
+                                   Type=PdfParser.PdfName("XObject"),
+                                   Subtype=PdfParser.PdfName("Image"),
+                                   Width=width,  # * 72.0 / resolution,
+                                   Height=height,  # * 72.0 / resolution,
+                                   Filter=PdfParser.PdfName(filter),
+                                   BitsPerComponent=bits,
+                                   DecodeParams=params,
+                                   ColorSpace=colorspace)
 
             #
             # page
 
             existing_pdf.write_page(page_refs[pageNumber],
-                Resources=PdfParser.PdfDict(
-                    ProcSet=[PdfParser.PdfName("PDF"), PdfParser.PdfName(procset)],
-                    XObject=PdfParser.PdfDict(image=image_refs[pageNumber])),
-                MediaBox=[0, 0, int(width * 72.0 / resolution), int(height * 72.0 / resolution)],
-                Contents=contents_refs[pageNumber]
-                )
+                                    Resources=PdfParser.PdfDict(
+                                        ProcSet=[
+                                            PdfParser.PdfName("PDF"),
+                                            PdfParser.PdfName(procset)
+                                        ],
+                                        XObject=PdfParser.PdfDict(
+                                            image=image_refs[pageNumber]
+                                        )
+                                    ),
+                                    MediaBox=[
+                                        0,
+                                        0,
+                                        int(width * 72.0 / resolution),
+                                        int(height * 72.0 / resolution)
+                                    ],
+                                    Contents=contents_refs[pageNumber])
 
             #
             # page contents
@@ -204,7 +222,8 @@ def _save(im, fp, filename, save_all=False):
                     int(width * 72.0 / resolution),
                     int(height * 72.0 / resolution)))
 
-            existing_pdf.write_obj(contents_refs[pageNumber], stream=page_contents)
+            existing_pdf.write_obj(contents_refs[pageNumber],
+                                   stream=page_contents)
 
             pageNumber += 1
 

src/PIL/PdfParser.py

@@ -20,7 +20,8 @@ else:  # Python 2.x
         return s        # pragma: no cover
 
 
-# see 7.9.2.2 Text String Type on page 86 and D.3 PDFDocEncoding Character Set on page 656
+# see 7.9.2.2 Text String Type on page 86 and D.3 PDFDocEncoding Character Set
+# on page 656
 def encode_text(s):
     return codecs.BOM_UTF16_BE + s.encode("utf_16_be")
 
@@ -80,7 +81,8 @@ def decode_text(b):
 
 
 class PdfFormatError(RuntimeError):
-    """An error that probably indicates a syntactic or semantic error in the PDF file structure"""
+    """An error that probably indicates a syntactic or semantic error in the
+    PDF file structure"""
     pass
 
 
@@ -89,7 +91,8 @@ def check_format_condition(condition, error_message):
         raise PdfFormatError(error_message)
 
 
-class IndirectReference(collections.namedtuple("IndirectReferenceTuple", ["object_id", "generation"])):
+class IndirectReference(collections.namedtuple("IndirectReferenceTuple",
+                        ["object_id", "generation"])):
     def __str__(self):
         return "%s %s R" % self
 
@@ -97,7 +100,9 @@ class IndirectReference(collections.namedtuple("IndirectReferenceTuple", ["objec
         return self.__str__().encode("us-ascii")
 
     def __eq__(self, other):
-        return other.__class__ is self.__class__ and other.object_id == self.object_id and other.generation == self.generation
+        return other.__class__ is self.__class__ and \
+               other.object_id == self.object_id and \
+               other.generation == self.generation
 
     def __ne__(self, other):
         return not (self == other)
@@ -143,19 +148,26 @@ class XrefTable:
         elif key in self.deleted_entries:
             generation = self.deleted_entries[key]
         else:
-            raise IndexError("object ID " + str(key) + " cannot be deleted because it doesn't exist")
+            raise IndexError("object ID " + str(key) +
+                             " cannot be deleted because it doesn't exist")
 
     def __contains__(self, key):
         return key in self.existing_entries or key in self.new_entries
 
     def __len__(self):
-        return len(set(self.existing_entries.keys()) | set(self.new_entries.keys()) | set(self.deleted_entries.keys()))
+        return len(set(self.existing_entries.keys()) |
+                   set(self.new_entries.keys()) |
+                   set(self.deleted_entries.keys()))
 
     def keys(self):
-        return (set(self.existing_entries.keys()) - set(self.deleted_entries.keys())) | set(self.new_entries.keys())
+        return (
+            set(self.existing_entries.keys()) -
+            set(self.deleted_entries.keys())
+        ) | set(self.new_entries.keys())
 
     def write(self, f):
-        keys = sorted(set(self.new_entries.keys()) | set(self.deleted_entries.keys()))
+        keys = sorted(set(self.new_entries.keys()) |
+                      set(self.deleted_entries.keys()))
         deleted_keys = sorted(set(self.deleted_entries.keys()))
         startxref = f.tell()
         f.write(b"xref\n")
@@ -172,10 +184,12 @@ class XrefTable:
             else:
                 contiguous_keys = keys
                 keys = None
-            f.write(make_bytes("%d %d\n" % (contiguous_keys[0], len(contiguous_keys))))
+            f.write(make_bytes("%d %d\n" %
+                               (contiguous_keys[0], len(contiguous_keys))))
             for object_id in contiguous_keys:
                 if object_id in self.new_entries:
-                    f.write(make_bytes("%010d %05d n \n" % self.new_entries[object_id]))
+                    f.write(make_bytes("%010d %05d n \n" %
+                                       self.new_entries[object_id]))
                 else:
                     this_deleted_object_id = deleted_keys.pop(0)
                     check_format_condition(object_id == this_deleted_object_id,
@@ -186,7 +200,9 @@ class XrefTable:
                         next_in_linked_list = deleted_keys[0]
                     except IndexError:
                         next_in_linked_list = 0
-                    f.write(make_bytes("%010d %05d f \n" % (next_in_linked_list, self.deleted_entries[object_id])))
+                    f.write(make_bytes("%010d %05d f \n" %
+                                       (next_in_linked_list,
+                                        self.deleted_entries[object_id])))
         return startxref
 
 
@@ -203,7 +219,8 @@ class PdfName:
         return self.name.decode("us-ascii")
 
     def __eq__(self, other):
-        return (isinstance(other, PdfName) and other.name == self.name) or other == self.name
+        return (isinstance(other, PdfName) and other.name == self.name) or \
+               other == self.name
 
     def __hash__(self):
         return hash(self.name)
@@ -313,7 +330,9 @@ class PdfStream:
                 expected_length = self.dictionary.Length
             return zlib.decompress(self.buf, bufsize=int(expected_length))
         else:
-            raise NotImplementedError("stream filter %s unknown/unsupported" % repr(self.dictionary.Filter))
+            raise NotImplementedError(
+                "stream filter %s unknown/unsupported" %
+                repr(self.dictionary.Filter))
 
 
 def pdf_repr(x):
@@ -323,7 +342,8 @@ def pdf_repr(x):
         return b"false"
     elif x is None:
         return b"null"
-    elif isinstance(x, PdfName) or isinstance(x, PdfDict) or isinstance(x, PdfArray) or isinstance(x, PdfBinary):
+    elif (isinstance(x, PdfName) or isinstance(x, PdfDict) or
+          isinstance(x, PdfArray) or isinstance(x, PdfBinary)):
         return bytes(x)
     elif isinstance(x, int):
         return str(x).encode("us-ascii")
@@ -331,10 +351,15 @@ def pdf_repr(x):
         return bytes(PdfDict(x))
     elif isinstance(x, list):
         return bytes(PdfArray(x))
-    elif (py3 and isinstance(x, str)) or (not py3 and isinstance(x, unicode)):
+    elif ((py3 and isinstance(x, str)) or
+          (not py3 and isinstance(x, unicode))):
         return pdf_repr(encode_text(x))
     elif isinstance(x, bytes):
-        return b"(" + x.replace(b"\\", b"\\\\").replace(b"(", b"\\(").replace(b")", b"\\)") + b")"  # XXX escape more chars? handle binary garbage
+        # XXX escape more chars? handle binary garbage
+        x = x.replace(b"\\", b"\\\\")
+        x = x.replace(b"(", b"\\(")
+        x = x.replace(b")", b"\\)")
+        return b"(" + x + b")"
     else:
         return bytes(x)
 
@@ -344,10 +369,13 @@ class PdfParser:
     Supports PDF up to 1.4
     """
 
-    def __init__(self, filename=None, f=None, buf=None, start_offset=0, mode="rb"):
-        # type: (PdfParser, str, file, Union[bytes, bytearray], int, str) -> None
+    def __init__(self, filename=None, f=None,
+                 buf=None, start_offset=0, mode="rb"):
+        # type: (PdfParser, str, file, Union[bytes, bytearray], int, str)
+        #       -> None
         if buf and f:
-            raise RuntimeError("specify buf or f or filename, but not both buf and f")
+            raise RuntimeError(
+                "specify buf or f or filename, but not both buf and f")
         self.filename = filename
         self.buf = buf
         self.f = f
@@ -473,7 +501,8 @@ class PdfParser:
         if self.info:
             trailer_dict[b"Info"] = self.info_ref
         self.last_xref_section_offset = start_xref
-        self.f.write(b"trailer\n" + bytes(PdfDict(trailer_dict)) + make_bytes("\nstartxref\n%d\n%%%%EOF" % start_xref))
+        self.f.write(b"trailer\n" + bytes(PdfDict(trailer_dict)) +
+                     make_bytes("\nstartxref\n%d\n%%%%EOF" % start_xref))
 
     def write_page(self, ref, *objs, **dict_obj):
         if isinstance(ref, int):
@@ -535,13 +564,18 @@ class PdfParser:
         else:
             self.info = PdfDict(self.read_indirect(self.info_ref))
         check_format_condition(b"Type" in self.root, "/Type missing in Root")
-        check_format_condition(self.root[b"Type"] == b"Catalog", "/Type in Root is not /Catalog")
+        check_format_condition(self.root[b"Type"] == b"Catalog",
+                               "/Type in Root is not /Catalog")
         check_format_condition(b"Pages" in self.root, "/Pages missing in Root")
-        check_format_condition(isinstance(self.root[b"Pages"], IndirectReference), "/Pages in Root is not an indirect reference")
+        check_format_condition(isinstance(self.root[b"Pages"],
+                               IndirectReference),
+                               "/Pages in Root is not an indirect reference")
         self.pages_ref = self.root[b"Pages"]
         self.page_tree_root = self.read_indirect(self.pages_ref)
         self.pages = self.linearize_page_tree(self.page_tree_root)
-        # save the original list of page references in case the user modifies, adds or deletes some pages and we need to rewrite the pages and their list
+        # save the original list of page references
+        # in case the user modifies, adds or deletes some pages
+        # and we need to rewrite the pages and their list
         self.orig_pages = self.pages[:]
 
     def next_object_id(self, offset=None):
@@ -562,10 +596,14 @@ class PdfParser:
     whitespace_mandatory = whitespace + b"+"
     newline_only = br"[\r\n]+"
     newline = whitespace_optional + newline_only + whitespace_optional
-    re_trailer_end = re.compile(whitespace_mandatory + br"trailer" + whitespace_optional + br"\<\<(.*\>\>)" + newline
-        + br"startxref" + newline + br"([0-9]+)" + newline + br"%%EOF" + whitespace_optional + br"$", re.DOTALL)
-    re_trailer_prev = re.compile(whitespace_optional + br"trailer" + whitespace_optional + br"\<\<(.*?\>\>)" + newline
-        + br"startxref" + newline + br"([0-9]+)" + newline + br"%%EOF" + whitespace_optional, re.DOTALL)
+    re_trailer_end = re.compile(
+        whitespace_mandatory + br"trailer" + whitespace_optional +
+        br"\<\<(.*\>\>)" + newline + br"startxref" + newline + br"([0-9]+)" +
+        newline + br"%%EOF" + whitespace_optional + br"$", re.DOTALL)
+    re_trailer_prev = re.compile(
+        whitespace_optional + br"trailer" + whitespace_optional +
+        br"\<\<(.*?\>\>)" + newline + br"startxref" + newline + br"([0-9]+)" +
+        newline + br"%%EOF" + whitespace_optional, re.DOTALL)
 
     def read_trailer(self):
         search_start_offset = len(self.buf) - 16384
@@ -589,19 +627,26 @@ class PdfParser:
             self.read_prev_trailer(self.trailer_dict[b"Prev"])
 
     def read_prev_trailer(self, xref_section_offset):
-        trailer_offset = self.read_xref_table(xref_section_offset=xref_section_offset)
-        m = self.re_trailer_prev.search(self.buf[trailer_offset:trailer_offset+16384])
+        trailer_offset = self.read_xref_table(
+            xref_section_offset=xref_section_offset)
+        m = self.re_trailer_prev.search(
+            self.buf[trailer_offset:trailer_offset+16384])
         check_format_condition(m, "previous trailer not found")
         trailer_data = m.group(1)
-        check_format_condition(int(m.group(2)) == xref_section_offset, "xref section offset in previous trailer doesn't match what was expected")
+        check_format_condition(int(m.group(2)) == xref_section_offset,
+                               "xref section offset in previous trailer "
+                               "doesn't match what was expected")
         trailer_dict = self.interpret_trailer(trailer_data)
         if b"Prev" in trailer_dict:
             self.read_prev_trailer(trailer_dict[b"Prev"])
 
     re_whitespace_optional = re.compile(whitespace_optional)
-    re_name = re.compile(whitespace_optional + br"/([!-$&'*-.0-;=?-Z\\^-z|~]+)(?=" + delimiter_or_ws + br")")
+    re_name = re.compile(
+        whitespace_optional + br"/([!-$&'*-.0-;=?-Z\\^-z|~]+)(?=" +
+        delimiter_or_ws + br")")
     re_dict_start = re.compile(whitespace_optional + br"\<\<")
-    re_dict_end = re.compile(whitespace_optional + br"\>\>" + whitespace_optional)
+    re_dict_end = re.compile(
+        whitespace_optional + br"\>\>" + whitespace_optional)
 
     @classmethod
     def interpret_trailer(cls, trailer_data):
@@ -611,13 +656,21 @@ class PdfParser:
             m = cls.re_name.match(trailer_data, offset)
             if not m:
                 m = cls.re_dict_end.match(trailer_data, offset)
-                check_format_condition(m and m.end() == len(trailer_data), "name not found in trailer, remaining data: " + repr(trailer_data[offset:]))
+                check_format_condition(
+                    m and m.end() == len(trailer_data),
+                    "name not found in trailer, remaining data: " +
+                    repr(trailer_data[offset:]))
                 break
             key = cls.interpret_name(m.group(1))
             value, offset = cls.get_value(trailer_data, m.end())
             trailer[key] = value
-        check_format_condition(b"Size" in trailer and isinstance(trailer[b"Size"], int), "/Size not in trailer or not an integer")
-        check_format_condition(b"Root" in trailer and isinstance(trailer[b"Root"], IndirectReference), "/Root not in trailer or not an indirect reference")
+        check_format_condition(
+            b"Size" in trailer and isinstance(trailer[b"Size"], int),
+            "/Size not in trailer or not an integer")
+        check_format_condition(
+            b"Root" in trailer and
+            isinstance(trailer[b"Root"], IndirectReference),
+            "/Root not in trailer or not an indirect reference")
         return trailer
 
     re_hashes_in_name = re.compile(br"([^#]*)(#([0-9a-fA-F]{2}))?")
@@ -627,7 +680,8 @@ class PdfParser:
         name = b""
         for m in cls.re_hashes_in_name.finditer(raw):
             if m.group(3):
-                name += m.group(1) + bytearray.fromhex(m.group(3).decode("us-ascii"))
+                name += m.group(1) + \
+                    bytearray.fromhex(m.group(3).decode("us-ascii"))
             else:
                 name += m.group(1)
         if as_text:
@@ -635,21 +689,37 @@ class PdfParser:
         else:
             return bytes(name)
 
-    re_null = re.compile(whitespace_optional + br"null(?=" + delimiter_or_ws + br")")
-    re_true = re.compile(whitespace_optional + br"true(?=" + delimiter_or_ws + br")")
-    re_false = re.compile(whitespace_optional + br"false(?=" + delimiter_or_ws + br")")
-    re_int = re.compile(whitespace_optional + br"([-+]?[0-9]+)(?=" + delimiter_or_ws + br")")
-    re_real = re.compile(whitespace_optional + br"([-+]?([0-9]+\.[0-9]*|[0-9]*\.[0-9]+))(?=" + delimiter_or_ws + br")")
+    re_null = re.compile(
+        whitespace_optional + br"null(?=" + delimiter_or_ws + br")")
+    re_true = re.compile(
+        whitespace_optional + br"true(?=" + delimiter_or_ws + br")")
+    re_false = re.compile(
+        whitespace_optional + br"false(?=" + delimiter_or_ws + br")")
+    re_int = re.compile(
+        whitespace_optional + br"([-+]?[0-9]+)(?=" + delimiter_or_ws + br")")
+    re_real = re.compile(
+        whitespace_optional + br"([-+]?([0-9]+\.[0-9]*|[0-9]*\.[0-9]+))(?=" +
+        delimiter_or_ws + br")")
     re_array_start = re.compile(whitespace_optional + br"\[")
     re_array_end = re.compile(whitespace_optional + br"]")
-    re_string_hex = re.compile(whitespace_optional + br"\<(" + whitespace_or_hex + br"*)\>")
+    re_string_hex = re.compile(
+        whitespace_optional + br"\<(" + whitespace_or_hex + br"*)\>")
     re_string_lit = re.compile(whitespace_optional + br"\(")
-    re_indirect_reference = re.compile(whitespace_optional + br"([-+]?[0-9]+)" + whitespace_mandatory + br"([-+]?[0-9]+)" + whitespace_mandatory + br"R(?=" + delimiter_or_ws + br")")
-    re_indirect_def_start = re.compile(whitespace_optional + br"([-+]?[0-9]+)" + whitespace_mandatory + br"([-+]?[0-9]+)" + whitespace_mandatory + br"obj(?=" + delimiter_or_ws + br")")
-    re_indirect_def_end = re.compile(whitespace_optional + br"endobj(?=" + delimiter_or_ws + br")")
-    re_comment = re.compile(br"(" + whitespace_optional + br"%[^\r\n]*" + newline + br")*")
+    re_indirect_reference = re.compile(
+        whitespace_optional + br"([-+]?[0-9]+)" + whitespace_mandatory +
+        br"([-+]?[0-9]+)" + whitespace_mandatory + br"R(?=" + delimiter_or_ws +
+        br")")
+    re_indirect_def_start = re.compile(
+        whitespace_optional + br"([-+]?[0-9]+)" + whitespace_mandatory +
+        br"([-+]?[0-9]+)" + whitespace_mandatory + br"obj(?=" +
+        delimiter_or_ws + br")")
+    re_indirect_def_end = re.compile(
+        whitespace_optional + br"endobj(?=" + delimiter_or_ws + br")")
+    re_comment = re.compile(
+        br"(" + whitespace_optional + br"%[^\r\n]*" + newline + br")*")
     re_stream_start = re.compile(whitespace_optional + br"stream\r?\n")
-    re_stream_end = re.compile(whitespace_optional + br"endstream(?=" + delimiter_or_ws + br")")
+    re_stream_end = re.compile(
+        whitespace_optional + br"endstream(?=" + delimiter_or_ws + br")")
 
     @classmethod
     def get_value(cls, data, offset, expect_indirect=None, max_nesting=-1):
@@ -660,21 +730,34 @@ class PdfParser:
             offset = m.end()
         m = cls.re_indirect_def_start.match(data, offset)
         if m:
-            check_format_condition(int(m.group(1)) > 0, "indirect object definition: object ID must be greater than 0")
-            check_format_condition(int(m.group(2)) >= 0, "indirect object definition: generation must be non-negative")
-            check_format_condition(expect_indirect is None or expect_indirect == IndirectReference(int(m.group(1)), int(m.group(2))),
+            check_format_condition(
+                int(m.group(1)) > 0,
+                "indirect object definition: object ID must be greater than 0")
+            check_format_condition(
+                int(m.group(2)) >= 0,
+                "indirect object definition: generation must be non-negative")
+            check_format_condition(
+                expect_indirect is None or expect_indirect ==
+                IndirectReference(int(m.group(1)), int(m.group(2))),
                 "indirect object definition different than expected")
-            object, offset = cls.get_value(data, m.end(), max_nesting=max_nesting-1)
+            object, offset = cls.get_value(
+                data, m.end(), max_nesting=max_nesting-1)
             if offset is None:
                 return object, None
             m = cls.re_indirect_def_end.match(data, offset)
-            check_format_condition(m, "indirect object definition end not found")
+            check_format_condition(
+                m, "indirect object definition end not found")
             return object, m.end()
-        check_format_condition(not expect_indirect, "indirect object definition not found")
+        check_format_condition(
+            not expect_indirect, "indirect object definition not found")
         m = cls.re_indirect_reference.match(data, offset)
         if m:
-            check_format_condition(int(m.group(1)) > 0, "indirect object reference: object ID must be greater than 0")
-            check_format_condition(int(m.group(2)) >= 0, "indirect object reference: generation must be non-negative")
+            check_format_condition(
+                int(m.group(1)) > 0,
+                "indirect object reference: object ID must be greater than 0")
+            check_format_condition(
+                int(m.group(2)) >= 0,
+                "indirect object reference: generation must be non-negative")
             return IndirectReference(int(m.group(1)), int(m.group(2))), m.end()
         m = cls.re_dict_start.match(data, offset)
         if m:
@@ -682,10 +765,12 @@ class PdfParser:
             result = {}
             m = cls.re_dict_end.match(data, offset)
             while not m:
-                key, offset = cls.get_value(data, offset, max_nesting=max_nesting-1)
+                key, offset = cls.get_value(
+                    data, offset, max_nesting=max_nesting-1)
                 if offset is None:
                     return result, None
-                value, offset = cls.get_value(data, offset, max_nesting=max_nesting-1)
+                value, offset = cls.get_value(
+                    data, offset, max_nesting=max_nesting-1)
                 result[key] = value
                 if offset is None:
                     return result, None
@@ -696,7 +781,9 @@ class PdfParser:
                 try:
                     stream_len = int(result[b"Length"])
                 except (TypeError, KeyError, ValueError):
-                    raise PdfFormatError("bad or missing Length in stream dict (%r)" % result.get(b"Length", None))
+                    raise PdfFormatError(
+                        "bad or missing Length in stream dict (%r)" %
+                        result.get(b"Length", None))
                 stream_data = data[m.end():m.end() + stream_len]
                 m = cls.re_stream_end.match(data, m.end() + stream_len)
                 check_format_condition(m, "stream end not found")
@@ -711,7 +798,8 @@ class PdfParser:
             result = []
             m = cls.re_array_end.match(data, offset)
             while not m:
-                value, offset = cls.get_value(data, offset, max_nesting=max_nesting-1)
+                value, offset = cls.get_value(
+                    data, offset, max_nesting=max_nesting-1)
                 result.append(value)
                 if offset is None:
                     return result, None
@@ -734,18 +822,25 @@ class PdfParser:
             return int(m.group(1)), m.end()
         m = cls.re_real.match(data, offset)
         if m:
-            return float(m.group(1)), m.end()  # XXX Decimal instead of float???
+            # XXX Decimal instead of float???
+            return float(m.group(1)), m.end()
         m = cls.re_string_hex.match(data, offset)
         if m:
-            hex_string = bytearray([b for b in m.group(1) if b in b"0123456789abcdefABCDEF"])  # filter out whitespace
+            # filter out whitespace
+            hex_string = bytearray([
+                b for b in m.group(1)
+                if b in b"0123456789abcdefABCDEF"
+            ])
             if len(hex_string) % 2 == 1:
-                hex_string.append(ord(b"0"))  # append a 0 if the length is not even - yes, at the end
+                # append a 0 if the length is not even - yes, at the end
+                hex_string.append(ord(b"0"))
             return bytearray.fromhex(hex_string.decode("us-ascii")), m.end()
         m = cls.re_string_lit.match(data, offset)
         if m:
             return cls.get_literal_string(data, m.end())
-        #return None, offset  # fallback (only for debugging)
-        raise PdfFormatError("unrecognized object: " + repr(data[offset:offset+32]))
+        # return None, offset  # fallback (only for debugging)
+        raise PdfFormatError(
+            "unrecognized object: " + repr(data[offset:offset+32]))
 
     re_lit_str_token = re.compile(br"(\\[nrtbf()\\])|(\\[0-9]{1,3})|(\\(\r\n|\r|\n))|(\r\n|\r|\n)|(\()|(\))")
     escaped_chars = {
@@ -792,19 +887,24 @@ class PdfParser:
             offset = m.end()
         raise PdfFormatError("unfinished literal string")
 
-    re_xref_section_start = re.compile(whitespace_optional + br"xref" + newline)
-    re_xref_subsection_start = re.compile(whitespace_optional + br"([0-9]+)" + whitespace_mandatory + br"([0-9]+)" + whitespace_optional + newline_only)
+    re_xref_section_start = re.compile(
+        whitespace_optional + br"xref" + newline)
+    re_xref_subsection_start = re.compile(
+        whitespace_optional + br"([0-9]+)" + whitespace_mandatory +
+        br"([0-9]+)" + whitespace_optional + newline_only)
     re_xref_entry = re.compile(br"([0-9]{10}) ([0-9]{5}) ([fn])( \r| \n|\r\n)")
 
     def read_xref_table(self, xref_section_offset):
         subsection_found = False
-        m = self.re_xref_section_start.match(self.buf, xref_section_offset + self.start_offset)
+        m = self.re_xref_section_start.match(
+            self.buf, xref_section_offset + self.start_offset)
         check_format_condition(m, "xref section start not found")
         offset = m.end()
         while True:
             m = self.re_xref_subsection_start.match(self.buf, offset)
             if not m:
-                check_format_condition(subsection_found, "xref subsection start not found")
+                check_format_condition(
+                    subsection_found, "xref subsection start not found")
                 break
             subsection_found = True
             offset = m.end()
@@ -818,22 +918,31 @@ class PdfParser:
                 generation = int(m.group(2))
                 if not is_free:
                     new_entry = (int(m.group(1)), generation)
-                    check_format_condition(i not in self.xref_table or self.xref_table[i] == new_entry, "xref entry duplicated (and not identical)")
+                    check_format_condition(
+                        i not in self.xref_table or
+                        self.xref_table[i] == new_entry,
+                        "xref entry duplicated (and not identical)")
                     self.xref_table[i] = new_entry
         return offset
 
     def read_indirect(self, ref, max_nesting=-1):
         offset, generation = self.xref_table[ref[0]]
-        check_format_condition(generation == ref[1], "expected to find generation %s for object ID %s in xref table, instead found generation %s at offset %s" \
+        check_format_condition(
+            generation == ref[1],
+            "expected to find generation %s for object ID %s in xref table, "
+            "instead found generation %s at offset %s"
             % (ref[1], ref[0], generation, offset))
-        value = self.get_value(self.buf, offset + self.start_offset, expect_indirect=IndirectReference(*ref), max_nesting=max_nesting)[0]
+        value = self.get_value(self.buf, offset + self.start_offset,
+                               expect_indirect=IndirectReference(*ref),
+                               max_nesting=max_nesting)[0]
         self.cached_objects[ref] = value
         return value
 
     def linearize_page_tree(self, node=None):
         if node is None:
             node = self.page_tree_root
-        check_format_condition(node[b"Type"] == b"Pages", "/Type of page tree node is not /Pages")
+        check_format_condition(
+            node[b"Type"] == b"Pages", "/Type of page tree node is not /Pages")
         pages = []
         for kid in node[b"Kids"]:
             kid_object = self.read_indirect(kid)

src/PIL/PngImagePlugin.py

@@ -142,7 +142,8 @@ class ChunkStream(object):
     def crc(self, cid, data):
         "Read and verify checksum"
 
-        # Skip CRC checks for ancillary chunks if allowed to load truncated images
+        # Skip CRC checks for ancillary chunks if allowed to load truncated
+        # images
         # 5th byte of first char is 1 [specs, section 5.4]
         if ImageFile.LOAD_TRUNCATED_IMAGES and (i8(cid[0]) >> 5 & 1):
             self.crc_skip(cid, data)
@@ -301,8 +302,8 @@ class PngStream(ChunkStream):
     def check_text_memory(self, chunklen):
         self.text_memory += chunklen
         if self.text_memory > MAX_TEXT_MEMORY:
-            raise ValueError("Too much memory used in text chunks: %s>MAX_TEXT_MEMORY" %
-                             self.text_memory)
+            raise ValueError("Too much memory used in text chunks: "
+                             "%s>MAX_TEXT_MEMORY" % self.text_memory)
 
     def chunk_iCCP(self, pos, length):
 

src/PIL/PpmImagePlugin.py

@@ -83,7 +83,8 @@ class PpmImageFile(ImageFile.ImageFile):
                     if s not in b_whitespace:
                         break
                     if s == b"":
-                        raise ValueError("File does not extend beyond magic number")
+                        raise ValueError(
+                            "File does not extend beyond magic number")
                 if s != b"#":
                     break
                 s = self.fp.readline()

src/PIL/SgiImagePlugin.py

@@ -222,6 +222,7 @@ Image.register_save(SgiImageFile.format, _save)
 Image.register_mime(SgiImageFile.format, "image/sgi")
 Image.register_mime(SgiImageFile.format, "image/rgb")
 
-Image.register_extensions(SgiImageFile.format, [".bw", ".rgb", ".rgba", ".sgi"])
+Image.register_extensions(SgiImageFile.format,
+                          [".bw", ".rgb", ".rgba", ".sgi"])
 
 # End of file

src/PIL/SunImagePlugin.py

@@ -62,7 +62,7 @@ class SunImageFile(ImageFile.ImageFile):
         self.size = i32(s[4:8]), i32(s[8:12])
 
         depth = i32(s[12:16])
-        data_length = i32(s[16:20])   # unreliable, ignore.
+        # data_length = i32(s[16:20])   # unreliable, ignore.
         file_type = i32(s[20:24])
         palette_type = i32(s[24:28])  # 0: None, 1: RGB, 2: Raw/arbitrary
         palette_length = i32(s[28:32])
@@ -94,7 +94,8 @@ class SunImageFile(ImageFile.ImageFile):
                 raise SyntaxError("Unsupported Palette Type")
 
             offset = offset + palette_length
-            self.palette = ImagePalette.raw("RGB;L", self.fp.read(palette_length))
+            self.palette = ImagePalette.raw("RGB;L",
+                                            self.fp.read(palette_length))
             if self.mode == "L":
                 self.mode = "P"
                 rawmode = rawmode.replace('L', 'P')

src/PIL/TiffImagePlugin.py

@@ -45,7 +45,6 @@ from . import Image, ImageFile, ImagePalette, TiffTags
 from ._binary import i8, o8
 from ._util import py3
 
-import collections
 from fractions import Fraction
 from numbers import Number, Rational
 
@@ -431,7 +430,8 @@ class ImageFileDirectory_v2(MutableMapping):
         * self.tagtype = {}
 
           * Key: numerical tiff tag number
-          * Value: integer corresponding to the data type from `~PIL.TiffTags.TYPES`
+          * Value: integer corresponding to the data type from
+                   ~PIL.TiffTags.TYPES`
 
     .. versionadded:: 3.0.0
     """
@@ -577,8 +577,8 @@ class ImageFileDirectory_v2(MutableMapping):
         # Spec'd length == 1, Actual > 1, Warn and truncate. Formerly barfed.
         # No Spec, Actual length 1, Formerly (<4.2) returned a 1 element tuple.
         # Don't mess with the legacy api, since it's frozen.
-        if ((info.length == 1) or
-            (info.length is None and len(values) == 1 and not legacy_api)):
+        if (info.length == 1) or \
+           (info.length is None and len(values) == 1 and not legacy_api):
             # Don't mess with the legacy api, since it's frozen.
             if legacy_api and self.tagtype[tag] in [5, 10]:  # rationals
                 values = values,
@@ -1245,7 +1245,7 @@ class TiffImageFile(ImageFile.ImageFile):
                 self.info["resolution"] = xres, yres
 
         # build tile descriptors
-        x = y = l = 0
+        x = y = layer = 0
         self.tile = []
         self.use_load_libtiff = False
         if STRIPOFFSETS in self.tag_v2:
@@ -1305,7 +1305,7 @@ class TiffImageFile(ImageFile.ImageFile):
 
             else:
                 for i, offset in enumerate(offsets):
-                    a = self._decoder(rawmode, l, i)
+                    a = self._decoder(rawmode, layer, i)
                     self.tile.append(
                         (self._compression,
                             (0, min(y, ysize), w, min(y+h, ysize)),
@@ -1315,7 +1315,7 @@ class TiffImageFile(ImageFile.ImageFile):
                     y = y + h
                     if y >= self.size[1]:
                         x = y = 0
-                        l += 1
+                        layer += 1
                     a = None
         elif TILEOFFSETS in self.tag_v2:
             # tiled image
@@ -1324,7 +1324,7 @@ class TiffImageFile(ImageFile.ImageFile):
             a = None
             for o in self.tag_v2[TILEOFFSETS]:
                 if not a:
-                    a = self._decoder(rawmode, l)
+                    a = self._decoder(rawmode, layer)
                 # FIXME: this doesn't work if the image size
                 # is not a multiple of the tile size...
                 self.tile.append(
@@ -1336,7 +1336,7 @@ class TiffImageFile(ImageFile.ImageFile):
                     x, y = 0, y + h
                     if y >= self.size[1]:
                         x = y = 0
-                        l += 1
+                        layer += 1
                         a = None
         else:
             if DEBUG:

src/PIL/TiffTags.py

@@ -23,7 +23,8 @@ from collections import namedtuple
 class TagInfo(namedtuple("_TagInfo", "value name type length enum")):
     __slots__ = []
 
-    def __new__(cls, value=None, name="unknown", type=None, length=None, enum=None):
+    def __new__(cls, value=None, name="unknown",
+                type=None, length=None, enum=None):
         return super(TagInfo, cls).__new__(
             cls, value, name, type, length, enum or {})
 
@@ -72,8 +73,8 @@ TAGS_V2 = {
     257: ("ImageLength", LONG, 1),
     258: ("BitsPerSample", SHORT, 0),
     259: ("Compression", SHORT, 1,
-          {"Uncompressed": 1, "CCITT 1d": 2, "Group 3 Fax": 3, "Group 4 Fax": 4,
-           "LZW": 5, "JPEG": 6, "PackBits": 32773}),
+          {"Uncompressed": 1, "CCITT 1d": 2, "Group 3 Fax": 3,
+           "Group 4 Fax": 4, "LZW": 5, "JPEG": 6, "PackBits": 32773}),
 
     262: ("PhotometricInterpretation", SHORT, 1,
           {"WhiteIsZero": 0, "BlackIsZero": 1, "RGB": 2, "RGB Palette": 3,

src/PIL/WmfImagePlugin.py

@@ -22,7 +22,8 @@
 from __future__ import print_function
 
 from . import Image, ImageFile
-from ._binary import i16le as word, si16le as short, i32le as dword, si32le as _long
+from ._binary import i16le as word, si16le as short, \
+                     i32le as dword, si32le as _long
 from ._util import py3
 
 

src/PIL/_util.py

@@ -1,4 +1,5 @@
-import os, sys
+import os
+import sys
 
 py3 = sys.version_info.major >= 3
 

src/PIL/_version.py

@@ -1,2 +1,2 @@
 # Master version for Pillow
-__version__ = '5.2.0'
+__version__ = '5.3.0.dev0'

src/libImaging/Draw.c

@@ -434,7 +434,7 @@ polygon_generic(Imaging im, int n, Edge *e, int ink, int eofill,
     }
 
     for (i = 0; i < n; i++) {
-        /* This causes that the pixels of horizontal edges are drawn twice :(
+        /* This causes the pixels of horizontal edges to be drawn twice :(
          * but without it there are inconsistencies in ellipses */
         if (e[i].ymin == e[i].ymax) {
             (*hline)(im, e[i].xmin, e[i].ymin, e[i].xmax, ink);