routing.py 文件源码

def bind(self, map, rebind=False):
        """Bind the url to a map and create a regular expression based on
        the information from the rule itself and the defaults from the map.

        :internal:
        """
        if self.map is not None and not rebind:
            raise RuntimeError('url rule %r already bound to map %r' %
                               (self, self.map))
        self.map = map
        if self.strict_slashes is None:
            self.strict_slashes = map.strict_slashes
        if self.subdomain is None:
            self.subdomain = map.default_subdomain
        self.compile()