def test_get_mro_union(self):
mro_u = get_mro(Union[int, str])
# Below is to stay compatible with Python 3.5+
super_cls = getattr(typing, '_GenericAlias',
getattr(typing, 'GenericMeta', None))
expected = (typing.Union, super_cls, object)
self.assertTupleEqual(expected, mro_u)
def test_get_mro_object(self):
mro_b = get_mro(B())
self.assertTupleEqual((B, A, object), mro_b)
def _get_complete_class_dict(cls: type) -> dict:
cls_dict = {}
# Loop reversed so values of sub-classes override those of super-classes.
for cls_or_elder in reversed(get_mro(cls)):
cls_dict.update(cls_or_elder.__dict__)
return cls_dict
def __subclasscheck__(cls, subclass: type) -> bool:
if Unicode in get_mro(subclass):
return cls.chars is Any or subclass.chars <= cls.chars
return False
def __subclasscheck__(cls, subclass: type) -> bool:
return Bool in get_mro(subclass)
def __subclasscheck__(cls, subclass: type) -> bool:
return Datetime64 in get_mro(subclass)
def __subclasscheck__(cls, subclass: type) -> bool:
return Timedelta64 in get_mro(subclass)
def _is_a(this: Any, that: type) -> bool:
# Return whether this is a subclass of that, considering the mro.
return that in get_mro(this)