diff options
Diffstat (limited to 'Lib/typing.py')
| -rw-r--r-- | Lib/typing.py | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/Lib/typing.py b/Lib/typing.py index c00a3a10e1..b5564cc29a 100644 --- a/Lib/typing.py +++ b/Lib/typing.py @@ -973,7 +973,8 @@ class GenericMeta(TypingMeta, abc.ABCMeta): # remove bare Generic from bases if there are other generic bases if any(isinstance(b, GenericMeta) and b is not Generic for b in bases): bases = tuple(b for b in bases if b is not Generic) - namespace.update({'__origin__': origin, '__extra__': extra}) + namespace.update({'__origin__': origin, '__extra__': extra, + '_gorg': None if not origin else origin._gorg}) self = super().__new__(cls, name, bases, namespace, _root=True) super(GenericMeta, self).__setattr__('_gorg', self if not origin else origin._gorg) @@ -1160,17 +1161,12 @@ class GenericMeta(TypingMeta, abc.ABCMeta): # classes are supposed to be rare anyways. return issubclass(instance.__class__, self) - def __copy__(self): - return self.__class__(self.__name__, self.__bases__, - _no_slots_copy(self.__dict__), - self.__parameters__, self.__args__, self.__origin__, - self.__extra__, self.__orig_bases__) - def __setattr__(self, attr, value): # We consider all the subscripted generics as proxies for original class if ( attr.startswith('__') and attr.endswith('__') or - attr.startswith('_abc_') + attr.startswith('_abc_') or + self._gorg is None # The class is not fully created, see #typing/506 ): super(GenericMeta, self).__setattr__(attr, value) else: |