Peter Pearson <ppear...@nowhere.invalid> writes: > Hey, that's a cute example, but . . . what a trap! Is it possible to > document the use-the-object-not-the-string requirement loudly enough > that people won't get caught?
Don't use strings for such values. The data isn't going to be used, so there's no sense using a semantically rich data type like a string. Instead, use an ‘object’ instance; then, the only way to get a binding that will compare equal is to use the very object itself. FORWARD = object() BACKWARD = object() -- \ “Never do anything against conscience even if the state demands | `\ it.” —Albert Einstein | _o__) | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
