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False negative for modified-iterating-list when using the del keyword #6648

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Pierre-Sassoulas opened this issue May 19, 2022 · 0 comments · Fixed by #6652
Closed

False negative for modified-iterating-list when using the del keyword #6648

Pierre-Sassoulas opened this issue May 19, 2022 · 0 comments · Fixed by #6652
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False Negative 🦋 No message is emitted but something is wrong with the code
Milestone
2.15.0

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@Pierre-Sassoulas
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Pierre-Sassoulas commented May 19, 2022 •
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Bug description

letters=['a','b','c','d','e','f','g','h','i','j','k','l']
for i in letters:
    del i
print(letters)  # Prints ['b', 'd', 'f', 'h', 'j', 'l']

Command used

pylint a.py

Pylint output

Nothing.

Expected behavior

modified-iterating-list raised. See #2471 (comment)

Pylint version

2.14.0
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Labels
False Negative 🦋 No message is emitted but something is wrong with the code
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Milestone
2.15.0
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Emit modified-iterating-{list|dict|set} when iterating literals or using del jacobtylerwalls/pylint
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@Pierre-Sassoulas @jacobtylerwalls