[issue30463] Add __slots__ to ABC convenience class

Chris Withers added the comment: I will note that this means with: class BaseClass(ABC): pass class MyDerivedClass(BaseClass): def __init__(self, thing): self.thing = thing thing = MyDerivedClass() thing now has both __slots__ and, evidently, a dict. That's a bit weird

[issue30463] Add __slots__ to ABC convenience class

Changes by Serhiy Storchaka : -- components: +Library (Lib) resolution: -> fixed stage: -> resolved status: open -> closed type: -> enhancement versions: +Python 3.7 ___ Python tracker

[issue30463] Add __slots__ to ABC convenience class

Serhiy Storchaka added the comment: New changeset ff48739ed0a3f366c4d56d3c86a37cbdeec600de by Serhiy Storchaka (Aaron Hall, MBA) in branch 'master': bpo-30463: Add an empty __slots__ to abc.ABC. https://github.com/python/cpython/commit/ff48739ed0a3f366c4d56d3c86a37cbdeec600de --

[issue30463] Add __slots__ to ABC convenience class

Changes by Ivan Levkivskyi : -- nosy: +levkivskyi ___ Python tracker ___ ___

[issue30463] Add __slots__ to ABC convenience class

Changes by Aaron Hall : -- pull_requests: +1908 ___ Python tracker ___ ___

[issue30463] Add __slots__ to ABC convenience class

Raymond Hettinger added the comment: This seems reasonable. -- nosy: +rhettinger ___ Python tracker ___ ___

[issue30463] Add __slots__ to ABC convenience class

New submission from Aaron Hall: We have __slots__ with other ABC's, see http://bugs.python.org/issue11333 and http://bugs.python.org/issue21421. There are no downsides to having empty slots on a non-instantiable class, but it does give the option of denying __dict__ creation for subclassers.