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[3.7] bpo-34921: Allow escaped NoReturn in get_type_hints (GH-9750) #10772

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Merged
merged 1 commit into from
Nov 28, 2018
Merged

[3.7] bpo-34921: Allow escaped NoReturn in get_type_hints (GH-9750) #10772

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2 changes: 1 addition & 1 deletion Lib/typing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -130,7 +130,7 @@ def _type_check(arg, msg, is_argument=True):
if (isinstance(arg, _GenericAlias) and
arg.__origin__ in invalid_generic_forms):
raise TypeError(f"{arg} is not valid as type argument")
if (isinstance(arg, _SpecialForm) and arg is not Any or
if (isinstance(arg, _SpecialForm) and arg not in (Any, NoReturn) or
arg in (Generic, _Protocol)):
raise TypeError(f"Plain {arg} is not valid as type argument")
if isinstance(arg, (type, TypeVar, ForwardRef)):
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