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[Enum] update class creation for RuntimeError changes (GH-111815)

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Ethan Furman 2023-11-28 20:40:12 -08:00 • committed by GitHub
parent e723700190
commit f9e6ce0395
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2 changed files with 9 additions and 6 deletions
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14
Lib/enum.py
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@ -568,12 +568,16 @@ class EnumType(type):
try:
exc = None
enum_class = super().__new__(metacls, cls, bases, classdict, **kwds)
except RuntimeError as e:
# any exceptions raised by member.__new__ will get converted to a
# RuntimeError, so get that original exception back and raise it instead
exc = e.__cause__ or e
except Exception as e:
# since 3.12 the line "Error calling __set_name__ on '_proto_member' instance ..."
# is tacked on to the error instead of raising a RuntimeError
# recreate the exception to discard
exc = type(e)(str(e))
exc.__cause__ = e.__cause__
exc.__context__ = e.__context__
tb = e.__traceback__
if exc is not None:
raise exc
raise exc.with_traceback(tb)
#
# update classdict with any changes made by __init_subclass__
classdict.update(enum_class.__dict__)