> >>> None = 0 > SyntaxError: assignment to None (<pyshell#0>, line 1) > >>> def f(): > None = 0 > > SyntaxError: assignment to None (<pyshell#2>, line 2) > > Does this imply that the compiler can now treat None as a constant? I'd hope so! --Guido van Rossum (home page: http://www.python.org/~guido/)