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Add more data to error message #8316

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Yay295
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@Yay295 Yay295 commented Aug 19, 2024

This changes the error message from
offset is neither short nor long
to
offset is neither short nor long: Tag ID 273 Field Type 16 Field Size 8 Count 1

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Could you give an example of how to trigger this error?

@radarhere radarhere added the TIFF label Aug 19, 2024
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Yay295 commented Aug 19, 2024

With #8317, test_bigtiff() in test_file_tiff.py triggers this error if del im.tag_v2[273] is removed from the test.

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radarhere commented Aug 19, 2024

Would it not be more consistent with the rest of TiffImagePlugin to log the extra information instead?

if samples_per_pixel > MAX_SAMPLESPERPIXEL:
# DOS check, samples_per_pixel can be a Long, and we extend the tuple below
logger.error(
"More samples per pixel than can be decoded: %s", samples_per_pixel
)
msg = "Invalid value for samples per pixel"
raise SyntaxError(msg)

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Yay295 commented Aug 19, 2024

It might. Logging is only used in five files in Pillow though (Image, PcxImagePlugin, PngImagePlugin, TiffImagePlugin, helper).

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2 participants