bot2.py

    def _command(self, parser = default_parser, name = None):
        def wrap(func):
            if not inspect.isfunction(func):
                raise RuntimeError, "Only functions allowed to be decorated as command!"

            if not name:
                name = func.__name__

            if not hasattr(func, '__doc__') or not func.__doc__:
                raise RuntimeError, "%s must have documentation!" % (name,)

            if parser not in self.commands:
                self.commands[parser] = {}

            self.commands[parser][name] = func
            return func
        return wrap