Olivier Gagnon added the comment: The dictionary and the set do not give the freedom to add dynamic attributes to them. I agree that the Counter should have the same behaviour.
However, this will raise the same bug when we inherit from a Counter object. >>> class mylist(list): pass ... >>> l = mylist() >>> l.foo = "bar" >>> c = copy.deepcopy(l) >>> print(c.foo) # prints bar >>> class myCounter(Counter): pass ... >>> original = myCounter() >>> original.foo = "bar" >>> c = copy.deepcopy(original) >>> c.foo Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: 'myCounter' object has no attribute 'foo' The reduction function should still copy every dynamic attribute of the object. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue18352> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
