Alexandre Vassalotti <[EMAIL PROTECTED]> added the comment: Python 3.0 shouldn't have any problem unpickling old-style classes. However, they will be unpickled as new-style classes. Therefore, there might be a few corner-cases that might cause some problems. For example, if an old-style class contains a __slots__:
Python 2.5.1 (r251:54863, Mar 7 2008, 04:10:12) >>> import pickle >>> class A: ... __slots__ = [] ... >>> pickle.dumps(A()) '(i__main__\nA\np0\n(dp1\nb.' Python 3.0a3+ (py3k:62050M, Mar 30 2008, 17:29:33) >>> class A: ... __slots__ = [] ... >>> pickle.loads(b'(i__main__\nA\np0\n(dp1\nb.') Traceback (most recent call last): ... TypeError: __class__ assignment: '_EmptyClass' deallocator differs from 'A' __________________________________ Tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue2572> __________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
