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gh-88959: Add __parameters__ and __getitem__ in TypeVar and ParamSpec #27511

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gh-88959: Add __parameters__ and __getitem__ in TypeVar and ParamSpec #27511

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edb3202
bpo-44796: Add __parameters__ and __getitem__ in TypeVar and ParamSpec
serhiy-storchaka Jul 27, 2021
6fc5cce
Merge branch 'main' into typevar-subst
serhiy-storchaka Jul 31, 2021
69844a7
Merge branch 'main' into typevar-subst
serhiy-storchaka Aug 2, 2021
e82cad2
Merge branch 'main' into typevar-subst
serhiy-storchaka Aug 4, 2021
98a7c83
More tests.
serhiy-storchaka Aug 5, 2021
10ea570
Merge branch 'main' into typevar-subst
serhiy-storchaka Jan 30, 2022
d330520
Fix substitution of bare ClassVar and Final.
serhiy-storchaka Jan 30, 2022
22556da
Merge branch 'main' into typevar-subst
serhiy-storchaka Feb 3, 2022
af0d9ea
Add more tests and fix substitution of a TypeVar with a ParamSpec
serhiy-storchaka Feb 3, 2022
285ec00
Add more tests.
serhiy-storchaka Feb 5, 2022
194cce2
Merge branch 'main' into typevar-subst
serhiy-storchaka Feb 5, 2022
57fa13a
Merge branch 'main' into typevar-subst
serhiy-storchaka Feb 6, 2022
5e495e6
Merge branch 'main' into typevar-subst
serhiy-storchaka Mar 12, 2022
a33ce0e
Merge branch 'main' into typevar-subst
serhiy-storchaka Mar 12, 2022
16cbd84
Update generated files.
serhiy-storchaka Mar 12, 2022
a0087e0
Merge branch 'main' into typevar-subst
serhiy-storchaka Jun 13, 2022
c80b261
Merge branch 'main' into typevar-subst
serhiy-storchaka Jun 14, 2022
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Fix substitution of bare ClassVar and Final.
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serhiy-storchaka committed Jan 30, 2022
commit d330520172044875430a20fc9dc95c959e6ce92e
4 changes: 3 additions & 1 deletion Lib/typing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -173,7 +173,9 @@ def _type_check(arg, msg, is_argument=True, module=None, *, allow_special_forms=
if (isinstance(arg, _GenericAlias) and
arg.__origin__ in invalid_generic_forms):
raise TypeError(f"{arg} is not valid as type argument")
if arg in (Any, NoReturn, ClassVar, Final):
if arg in (Any, NoReturn):
return arg
if allow_special_forms and arg in (ClassVar, Final):
return arg
if isinstance(arg, _SpecialForm) or arg in (Generic, Protocol):
raise TypeError(f"Plain {arg} is not valid as type argument")
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