Restore fromstring & tostring aliases in 3.x

PIL/Image.py

@@ -538,7 +538,6 @@ class Image:
 
         return b"".join(data)
 
-    if bytes is str:
     # Declare tostring as alias to tobytes
     def tostring(self, *args, **kw):
         warnings.warn(
@@ -595,9 +594,8 @@ class Image:
         if s[1] != 0:
             raise ValueError("cannot decode image data")
 
-    if bytes is str:
-        # Declare fromstring as alias to frombytes
     def fromstring(self, *args, **kw):
+        """ Deprecated alias to frombytes """
         warnings.warn('fromstring() is deprecated. Please call frombytes() instead.', DeprecationWarning)
         return self.frombytes(*args, **kw)
 
@@ -1814,9 +1812,8 @@ def frombytes(mode, size, data, decoder_name="raw", *args):
     im.frombytes(data, decoder_name, args)
     return im
 
-if bytes is str:
+def fromstring(*args, **kw):
-    # Declare fromstring as an alias for frombytes
+    " Deprecated alias to frombytes "
-    def fromstring(*args, **kw):
     warnings.warn(
         'fromstring() is deprecated. Please call frombytes() instead.',
         DeprecationWarning,

PIL/ImagePalette.py

@@ -49,7 +49,6 @@ class ImagePalette:
             return self.palette
         return array.array("B", self.palette).tostring()
 
-    if bytes is str:
     # Declare tostring as an alias for tobytes
     tostring = tobytes
 

PIL/ImageWin.py

@@ -17,6 +17,7 @@
 # See the README file for information on usage and redistribution.
 #
 
+import warnings
 from . import Image
 
 ##
@@ -167,9 +168,24 @@ class Dib:
     def tobytes(self):
         return self.image.tobytes()
 
-    if bytes is str:
+    ##
-        tostring = tobytes
+    # Deprecated aliases to frombytes & tobytes.
-        fromstring = frombytes
+
+    def fromstring(self, *args, **kw):
+        warnings.warn(
+            'fromstring() is deprecated. Please call frombytes() instead.',
+            DeprecationWarning,
+            stacklevel=2
+        )
+        return self.frombytes(*args, **kw)
+
+    def tostring(self):
+        warnings.warn(
+            'tostring() is deprecated. Please call tobytes() instead.',
+            DeprecationWarning,
+            stacklevel=2
+        )
+        return self.tobytes()
 
 ##
 # Create a Window with the given title size.

_imagingcms.c

@@ -497,9 +497,7 @@ static PyMethodDef pyCMSdll_methods[] = {
 
     {"profile_open", cms_profile_open, 1},
     {"profile_frombytes", cms_profile_fromstring, 1},
-#if PY_VERSION_HEX < 0x03000000
     {"profile_fromstring", cms_profile_fromstring, 1},
-#endif
 
     /* profile and transform functions */
     {"buildTransform", buildTransform, 1},

display.c

@@ -224,10 +224,8 @@ static struct PyMethodDef methods[] = {
     {"releasedc", (PyCFunction)_releasedc, 1},
     {"frombytes", (PyCFunction)_frombytes, 1},
     {"tobytes", (PyCFunction)_tobytes, 1},
-#if PY_VERSION_HEX < 0x03000000
     {"fromstring", (PyCFunction)_frombytes, 1},
     {"tostring", (PyCFunction)_tobytes, 1},
-#endif
     {NULL, NULL} /* sentinel */
 };