Eric Lafontaine added the comment: Hi,
For user-defined class, it's up to the class to do the right implementation in my opinion. It's true the description is wrong though. x in y means that x exist inside of y (so that the execution of y.__contain__(x) is executed successfully and (I guess) doesn't return None,False or 0). I'll modify the doc to be : For user-defined classes which define the __contains__() method, x in y is false if y.__contains__(x) is returning either None,False or 0. Otherwise, x in y return true. Regards, Eric Lafontaine ---------- nosy: +Eric Lafontaine _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue16011> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
