check_re.py 文件源码

def generic_visit(self, *args):
        for arg in args:
            if isinstance(arg, (list, tuple)):
                for t in self.generic_visit(*arg):
                    yield t
            elif isinstance(arg, sre_parse.SubPattern):
                for t in self.visit(arg):
                    yield t
            elif isinstance(arg, (int, long, str)):
                pass
            elif arg is None:
                pass
            else:
                raise TypeError('{0!r} has unexpected type'.format(arg))