PLR1704 issued for _ variable

[ktbarrett]

I'm not sure what pylint does, but the variable _ is idiomatically used as a "don't care" variable (in fact unused variables that aren't _ trigger a different warning) and the error PLR1704 being issued for it I consider to be flying in the face of idiomatic code.

[ktbarrett]

It seems the real issue is because I use _ for an unused argument, then use _ as a throwaway loop variable later. Perhaps this is just a bug.

def c(_):
    for _ in range(10):
        pass

[ktbarrett]

I just checked, pylint does not issue a warning in this case.

[zanieb]

Sounds like a bug to me. Thanks for the report.

xref #8159

[charliermarsh]

Thanks, we probably need to check this against dummy-variable-rgx. Good first issue!