default url routing and shortcut

#!/usr/bin/env python
# -*- coding: UTF-8 -*-
from django import http
from django.conf.urls.defaults import url
import re
 
def execute(request, urls, views):
    """
    urls [methodName/]param1/param2/.../
    methodName default index
    """
    def get_method(views, methodName):
        try:
            return getattr(views, methodName)
        except Exception, e:
            return None
    method = None
    params = [e for e in urls.split("/") if e]
    params.reverse()
    if params:
        method = get_method(views, params.pop())
    if not method:
        method = get_method(views, 'index')
    if not method:
        raise http.Http404('The requested admin page does not exist.')
    return method(request, *params)
 
def url_(*args,**dic):
    regex = args[0]
    if regex[0] == "/":
        regex = regex[1:]
    regex = '^' + regex
    regex = regex + '$'
    regex = re.sub(":[^/]+",
            lambda matchobj: "(?P<%s>[^/]+)" % matchobj.group(0)[1:],
            regex)
    return url(regex, *args[1:], **dic)