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Deprecated FitsStubImagePlugin
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@ -2,7 +2,7 @@ from io import BytesIO
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import pytest
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from PIL import FitsImagePlugin, Image
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from PIL import FitsImagePlugin, FitsStubImagePlugin, Image
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from .helper import assert_image_equal, hopper
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@ -43,3 +43,38 @@ def test_naxis_zero():
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with pytest.raises(ValueError):
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with Image.open("Tests/images/hopper_naxis_zero.fits"):
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pass
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def test_stub_deprecated():
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class Handler:
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opened = False
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loaded = False
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def open(self, im):
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self.opened = True
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def load(self, im):
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self.loaded = True
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return Image.new("RGB", (1, 1))
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handler = Handler()
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with pytest.warns(DeprecationWarning):
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FitsStubImagePlugin.register_handler(handler)
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with Image.open(TEST_FILE) as im:
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assert im.format == "FITS"
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assert im.size == (128, 128)
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assert im.mode == "L"
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assert handler.opened
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assert not handler.loaded
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im.load()
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assert handler.loaded
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FitsStubImagePlugin._handler = None
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Image.register_open(
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FitsImagePlugin.FitsImageFile.format,
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FitsImagePlugin.FitsImageFile,
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FitsImagePlugin._accept,
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)
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@ -66,6 +66,15 @@ In effect, ``viewer.show_file("test.jpg")`` will continue to work unchanged.
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``viewer.show_file(file="test.jpg")`` will raise a deprecation warning, and suggest
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``viewer.show_file(path="test.jpg")`` instead.
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FitsStubImagePlugin
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~~~~~~~~~~~~~~~~~~~
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.. deprecated:: 9.1.0
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The stub image plugin FitsStubImagePlugin has been deprecated and will be removed in
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Pillow 10.0.0 (2023-07-01). FITS images can be read without a handler through
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FitsImagePlugin instead.
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Removed features
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----------------
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@ -31,6 +31,15 @@ In effect, ``viewer.show_file("test.jpg")`` will continue to work unchanged.
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``viewer.show_file(file="test.jpg")`` will raise a deprecation warning, and suggest
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``viewer.show_file(path="test.jpg")`` instead.
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FitsStubImagePlugin
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~~~~~~~~~~~~~~~~~~~
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.. deprecated:: 9.1.0
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The stub image plugin FitsStubImagePlugin has been deprecated and will be removed in
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Pillow 10.0.0 (2023-07-01). FITS images can be read without a handler through
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FitsImagePlugin instead.
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API Additions
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=============
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77
src/PIL/FitsStubImagePlugin.py
Normal file
77
src/PIL/FitsStubImagePlugin.py
Normal file
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@ -0,0 +1,77 @@
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#
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# The Python Imaging Library
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# $Id$
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#
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# FITS stub adapter
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#
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# Copyright (c) 1998-2003 by Fredrik Lundh
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#
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# See the README file for information on usage and redistribution.
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#
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import warnings
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from . import FitsImagePlugin, Image, ImageFile
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_handler = None
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def register_handler(handler):
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"""
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Install application-specific FITS image handler.
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:param handler: Handler object.
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"""
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global _handler
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_handler = handler
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warnings.warn(
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"FitsStubImagePlugin is deprecated and will be removed in Pillow "
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"10 (2023-07-01). FITS images can now be read without a handler through "
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"FitsImagePlugin instead.",
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DeprecationWarning,
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)
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# Override FitsImagePlugin with this handler
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# for backwards compatibility
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try:
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Image.ID.remove(FITSStubImageFile.format)
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except ValueError:
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pass
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Image.register_open(
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FITSStubImageFile.format, FITSStubImageFile, FitsImagePlugin._accept
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)
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class FITSStubImageFile(ImageFile.StubImageFile):
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format = FitsImagePlugin.FitsImageFile.format
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format_description = FitsImagePlugin.FitsImageFile.format_description
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def _open(self):
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offset = self.fp.tell()
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im = FitsImagePlugin.FitsImageFile(self.fp)
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self._size = im.size
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self.mode = im.mode
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self.tile = []
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self.fp.seek(offset)
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loader = self._load()
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if loader:
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loader.open(self)
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def _load(self):
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return _handler
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def _save(im, fp, filename):
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raise OSError("FITS save handler not installed")
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# --------------------------------------------------------------------
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# Registry
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Image.register_save(FITSStubImageFile.format, _save)
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@ -31,6 +31,7 @@ _plugins = [
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"DdsImagePlugin",
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"EpsImagePlugin",
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"FitsImagePlugin",
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"FitsStubImagePlugin",
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"FliImagePlugin",
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"FpxImagePlugin",
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"FtexImagePlugin",
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