Bruno Desthuilliers wrote: > In python, assignement is a statement, not an expression, so there's no > way you could write 'if obj = None' by mistake (-> syntax error). So > this style is unpythonic. Also, None is a singleton, and identity test > is way faster than equality test.
Playing Devil's advocate here: if you were to write "x!=None", then x's __eq__ method is invoked, which might not account for the possibility that the other operand is None. However, if you write "None!=x", then None's __eq__ method is invoked, which accounts for any given type. Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
