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Correctly handle runtime type applications of variadic types #16240

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merged 2 commits into from
Oct 15, 2023

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This adds some missing pieces to runtime type application handling for both TypeVarTuple and ParamSpec. Everything is straightforward (maybe a bit hacky, but we already import typeanal in checkexpr for similar purposes, e.g. type aliases in runtime context).

Fixes #14799

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@ilevkivskyi
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This (and other 3 PRs on variadic types) are open for a week now. I will start merging them without review, one per day, starting from the most trivial one.

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According to mypy_primer, this change doesn't affect type check results on a corpus of open source code. ✅

@ilevkivskyi ilevkivskyi merged commit ff9deb3 into python:master Oct 15, 2023
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@ilevkivskyi ilevkivskyi deleted the fix-tvt-runtime-type-app branch October 15, 2023 20:44
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ParamSpec readability simplification causes weird behavior
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