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PyCQA / flake8-bugbear

A plugin for Flake8 finding likely bugs and design problems in your program. Contains warnings that don't belong in pyflakes and pycodestyle.
MIT License
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B031 false positive when reassigning the returned generator #395

Open tomasr8 opened 1 year ago

tomasr8 commented 1 year ago

Code to reproduce:

from itertools import groupby

for _, gen in groupby([]):
    gen = list(gen)
    print(gen)

This wrongly triggers B031 even though the generator is indeed saved to a list as suggested in the error message. You can make the error go away by assigning to a new variable so maybe not worth it to track reassignments?