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Merge pull request #4885 from radarhere/exception

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Hugo van Kemenade 2020-08-24 17:36:30 +03:00 committed by GitHub
commit 572259bcde
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2 changed files with 7 additions and 2 deletions
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5
Tests/test_imagefile.py
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@ -244,3 +244,8 @@ class TestPyDecoder:
im = MockImageFile(buf) im = MockImageFile(buf)
assert im.format is None assert im.format is None
assert im.get_format_mimetype() is None assert im.get_format_mimetype() is None
def test_oserror(self):
im = Image.new("RGB", (1, 1))
with pytest.raises(OSError):
im.save(BytesIO(), "JPEG2000")

4
src/PIL/ImageFile.py
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@ -509,7 +509,7 @@ def _save(im, fp, tile, bufsize=0):
try: try:
fh = fp.fileno() fh = fp.fileno()
fp.flush() fp.flush()
except (AttributeError, io.UnsupportedOperation) as e: except (AttributeError, io.UnsupportedOperation) as exc:
# compress to Python file-compatible object # compress to Python file-compatible object
for e, b, o, a in tile: for e, b, o, a in tile:
e = Image._getencoder(im.mode, e, a, im.encoderconfig) e = Image._getencoder(im.mode, e, a, im.encoderconfig)
@ -526,7 +526,7 @@ def _save(im, fp, tile, bufsize=0):
if s: if s:
break break
if s < 0: if s < 0:
raise OSError("encoder error %d when writing image file" % s) from e raise OSError("encoder error %d when writing image file" % s) from exc
e.cleanup() e.cleanup()
else: else:
# slight speedup: compress to real file object # slight speedup: compress to real file object