Enable ruff SIM101 duplicate isinstance check #18679
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We already do a good job enforcing this throughout the codebase (only 1 fix was necessary); let's make it explicit to ensure we are maximizing performance and readability. |
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Diff from mypy_primer, showing the effect of this PR on open source code: Tanjun (https://github.com/FasterSpeeding/Tanjun): 1.40x faster (134.4s -> 95.9s in a single noisy sample)
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Enforce no unnecessary duplicate isinstance calls (that could be merged into a tuple call).