def get_command(self, *path):
        """Return command at the given path or raise error."""
        path_str = ':'.join(path)

        if path_str in self.commands:
            return self.commands[path_str].load()

        return None
def get_command ( self , * path ) : path_str = ':' . join ( path ) if path_str in self . commands : return self . commands [ path_str ] . load ( ) return None
Return command at the given path or raise error.