Fix type subscript on older python versions #15090
Merged
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Summary
Python versions before Python 3.9 don't have subscriptable containers like
list
, which is being used in the annotation ofget_last_three_path_parts
here. I believe Ruff supports Python 3.7 and Python 3.8? In that case this needs to either use the container from thetyping
module, or use deferred annotations withfrom __future__ import annotations
like I'm proposing hereIntroduced by 60a2dc5
Test Plan
Currently the code path in
find_ruff_bin
that definesget_last_three_path_parts
doesn't work on Python 3.8 or 3.9, it throws this:With this change it does work