parser.py 文件源码

def myopen_http(method, url, values):
   if not url:
      raise ValueError("cannot submit, no URL provided")
   ## FIXME: should test that it's not a relative URL or something
   try:
      from urllib import urlencode, urlopen
   except ImportError: # Python 3
      from urllib.request import urlopen
      from urllib.parse import urlencode
   if method == 'GET':
      if '?' in url:
         url += '&'
      else:
         url += '?'
         url += urlencode(values)
         data = None
   else:
      data = urlencode(values).encode('utf-8')

   return urlopen(url, data)