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lib.enum: add Python 3.7..3.8 compatibility shim.

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Catherine 2023-02-28 13:26:52 +00:00
parent 57612f1dce
commit de36e3c162
1 changed files with 6 additions and 0 deletions
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6
amaranth/lib/enum.py
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@ -24,6 +24,12 @@ class EnumMeta(ShapeCastable, py_enum.EnumMeta):
:meth:`as_shape` is never called, it places no restrictions on the enumeration class :meth:`as_shape` is never called, it places no restrictions on the enumeration class
or the values of its members. or the values of its members.
""" """
# TODO: remove this shim once py3.8 support is dropped
@classmethod
def __prepare__(metacls, name, bases, shape=None, **kwargs):
return super().__prepare__(name, bases, **kwargs)
def __new__(metacls, name, bases, namespace, shape=None, **kwargs): def __new__(metacls, name, bases, namespace, shape=None, **kwargs):
cls = py_enum.EnumMeta.__new__(metacls, name, bases, namespace, **kwargs) cls = py_enum.EnumMeta.__new__(metacls, name, bases, namespace, **kwargs)
if shape is not None: if shape is not None: