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bpo-41354: Adjust filecmp.cmp() to match documentation - #21580

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chanke-mpcdf wants to merge 1 commit into
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chanke-mpcdf:fix-issue-41354
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chanke-mpcdf wants to merge 1 commit into
python:mainfrom
chanke-mpcdf:fix-issue-41354

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@chanke-mpcdf

@chanke-mpcdf chanke-mpcdf commented Jul 21, 2020 •

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@the-knights-who-say-ni

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Hello, and thanks for your contribution!

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@iritkatriel

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This change needs a unit test and a news entry.

Comment thread Lib/filecmp.py
if shallow and s1 == s2:
return True
if s1[1] != s2[1]:
if s1 != s2:

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It seems like if mtime is different but otherwise files are the same, current code will return True but this PR will change it to return False. That both breaks backwards compatibility and doesn't seem right to me.

@ambv

ambv commented Aug 4, 2021

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Closing in favor of GH-27166.

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7 participants