Save work on emitting ignored diagnostics#20621
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hauntsaninja merged 4 commits intopython:masterfrom Jan 26, 2026
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ilevkivskyi
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Oh wow, I tried something similar in summer, but didn't see big wins. I guess I simply needed to skip it in more places :-) About the renaming: not huge fan TBH I would prefer to rename those back.
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@hauntsaninja Is something blocking the merge of this PR? I'd love to have the perf increase! |
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No, just needed to undo the |
for more information, see https://pre-commit.ci
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According to mypy_primer, this change doesn't affect type check results on a corpus of open source code. ✅ |
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This should be another 2.5% on self check Sequel to #20621
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We already use this trick a little, but we can be much more aggressive about it.
Best reviewed with whitespace ignored. If the
pure_renames are undesirable it is easy to remove them, just helped me avoid some incorrect changes.This is a 4.5% win on compiled self check