bottle.py 文件源码

def build(self, _name, *anons, **query):
        """ Build an URL by filling the wildcards in a rule. """
        builder = self.builder.get(_name)
        if not builder:
            raise RouteBuildError("No route with that name.", _name)
        try:
            for i, value in enumerate(anons):
                query['anon%d' % i] = value
            url = ''.join([f(query.pop(n)) if n else f for (n, f) in builder])
            return url if not query else url + '?' + urlencode(query)
        except KeyError as E:
            raise RouteBuildError('Missing URL argument: %r' % E.args[0])