How does "x is not None" make any sense? "not x is None" does make sense.
I can only surmise that in this context (preceding is) "not" is not a unary right-associative operator, therefore: x is not None === IS_NOTEQ(X, None) Beside "not in" which seems to work similarly, is there other syntactical sugar like this that I should be aware of? W -- http://mail.python.org/mailman/listinfo/python-list
