> - in __getitem__, does it release the lock after returning the item? Yes, it does.
> - wouldn't it be better to use threading.RLock, mutex, ... instead? Better in what sense? Performance-wise? Semantically? Performance-wise, the best thing would be to do safe_dict = dict because the builtin dict is already thread-safe unless user-defined __hash__ or __eq__ methods get invoked (in which case the dictionary still works correctly - it's only that it may get modified while __hash__ or __eq__ is running). Semantically, it would be better to use a threading.RLock, if you expect that __hash__ or __eq__ may access the dictionary recursively. Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
