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Fix py3.10 UnionType checks #1240

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merged 1 commit into from Apr 9, 2022
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Fix py3.10 UnionType checks #1240

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12 changes: 7 additions & 5 deletions discord/enums.py
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Expand Up @@ -650,6 +650,13 @@ def from_datatype(cls, datatype):
else:
raise TypeError("Invalid usage of typing.Union")

py_3_10_union_type = hasattr(types, "UnionType") and isinstance(datatype, types.UnionType)

if py_3_10_union_type or getattr(datatype, "__origin__", None) is Union:
# Python 3.10+ "|" operator or typing.Union has been used. The __args__ attribute is a tuple of the types.
# Type checking fails for this case, so ignore it.
return cls.from_datatype(datatype.__args__) # type: ignore

if datatype.__name__ in ["Member", "User"]:
return cls.user
if datatype.__name__ in [
Expand All @@ -669,11 +676,6 @@ def from_datatype(cls, datatype):
if datatype.__name__ == "Mentionable":
return cls.mentionable

if isinstance(datatype, types.UnionType) or getattr(datatype, "__origin__", None) is Union:
# Python 3.10+ "|" operator or typing.Union has been used. The __args__ attribute is a tuple of the types.
# Type checking fails for this case, so ignore it.
return cls.from_datatype(datatype.__args__) # type: ignore

if issubclass(datatype, str):
return cls.string
if issubclass(datatype, bool):
Expand Down