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Title: Rework starargs with union argument by randolf-scholz · Pull Request #19651 · python/mypy · GitHub

Open Graph Title: Rework starargs with union argument by randolf-scholz · Pull Request #19651 · python/mypy

X Title: Rework starargs with union argument by randolf-scholz · Pull Request #19651 · python/mypy

Description: Optional static typing for Python. Contribute to python/mypy development by creating an account on GitHub.

Open Graph Description: Makes *args inference smarter by special casing UnionType *(tuple[A, B, C] | tuple[None|None|None]) gets treated like tuple[A | None, B | None, C | None] inside ArgTypeExpander (applies if all uni...

X Description: Makes *args inference smarter by special casing UnionType *(tuple[A, B, C] | tuple[None|None|None]) gets treated like tuple[A | None, B | None, C | None] inside ArgTypeExpander (applies if all uni...

Opengraph URL: https://github.com/python/mypy/pull/19651

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mypy fails to correctly understand some iterable type in *args #19662https://github.com/python/mypy/issues/19662
Mypy fails to solve tuple[int, *Ts, int] as an Iterable[T]. #19659https://github.com/python/mypy/issues/19659
Variadic *args where args: Union[Tuple[...], Tuple[...], ...] are _never_ checked [False Negative] #17161https://github.com/python/mypy/issues/17161
Unpacking an iterable in a list comprehension leads to the type inferred as list[Any] #15747https://github.com/python/mypy/issues/15747
Custom __iter__ method yields false positive when used with star args (*) #14470https://github.com/python/mypy/issues/14470
Unpacking unions of tuples skips type checking #15969https://github.com/python/mypy/issues/15969
#19650https://github.com/python/mypy/pull/19650
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rework starargs with union argumenthttps://github.com/python/mypy/pull/19651/commits/245cba30d43f1659a150a1883d7e823bf8ad5dfa
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Use typing.Unpack in testshttps://github.com/python/mypy/pull/19651/commits/f2d254c0f6cde6c3bf51ed2f84004789d5471ecb
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reworked argmapper with star argshttps://github.com/python/mypy/pull/19651/commits/df7b3f0409a5ec07cad3afbb02fcb64250e701e5
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always use the solver meachnismhttps://github.com/python/mypy/pull/19651/commits/5e239a3a5f27e3b2972b4398155574cd9c85af7f
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fixed infer_constraintshttps://github.com/python/mypy/pull/19651/commits/6cbb237ab06c6f5cf8538f567f9125b87c399234
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Merge branch 'master' into fix_list_comprehensionhttps://github.com/python/mypy/pull/19651/commits/08db3da706be925ac560a94022d253e98a509571
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Fix inference when unpacking union type #19650 https://github.com/python/mypy/pull/19650
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address reviewhttps://github.com/python/mypy/pull/19651/commits/fac1e07267c98421fbcc8978d2031c0ff59001ae
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Merge branch 'python:master' into fix_list_comprehensionhttps://github.com/python/mypy/pull/19651/commits/68bc67174f070c27e6ef98a8d42342c3fd2c8fef
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make ParamSpecFlavor an IntEnum and ParamSpecType generic in that type. #19670 https://github.com/python/mypy/pull/19670
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check paramspec flavorhttps://github.com/python/mypy/pull/19651/commits/e8dcf880b18b98facdeb6dd330930743b82ec1e5
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Revert "check paramspec flavor"https://github.com/python/mypy/pull/19651/commits/fe4289a8f5039b58339685622608b9b7ed9708f3
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Mypy fails to solve tuple[int, *Ts, int] as an Iterable[T]. https://github.com/python/mypy/issues/19659
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