Serhiy Storchaka added the comment: Python uses concrete class API (PyDict_GetItem and like) for resolving attributes. Using general mapping API would slow down attribute lookup in common case. This is performance critical part of Python and we should be very careful changing it.
On the other side, you still can have a benefit from using dict subclasses as __dict__. OrderedDict allows you to iterate dict in predefined order, and defaultdict allows you to create attributes with default values on demand (but __getattr__ is more universal method). See also issue10977. ---------- nosy: +rhettinger, serhiy.storchaka _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue1475692> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
