New submission from Aaron Hall: The __slots__ documentation in the datamodel needs improvement.
For example: > When inheriting from a class without __slots__, the __dict__ attribute of > that class will always be accessible, so a __slots__ definition in the > subclass is meaningless. The __slots__ definition for such a subclass is not meaningless: other slots declared will still be used, and the __dict__ will not be instantiated unless it is looked for (although this may be an implementation detail). > The action of a __slots__ declaration is limited to the class where it is > defined. As a result, subclasses will have a __dict__ unless they also define > __slots__ (which must only contain names of any additional slots). That's not quite right either. The action of a __slots__ declaration is not entirely limited to the class where it is defined. They can have implications for multiple inheritance, and child classes will have access to those slots. I have some changes I'd like to make to the entire section on __slots__, and I'll be providing a pull request soon. ---------- assignee: docs@python components: Documentation messages: 294305 nosy: Aaron Hall, docs@python priority: normal severity: normal status: open title: Improve __slots__ datamodel documentation versions: Python 2.7, Python 3.6, Python 3.7 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue30449> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
