#定义一个类
class CallBack:
  """
      for pycurl  
  """

  def __init__(self):
    """Constructor"""
    self.data = ""
  def func(self, data):
    self.data = self.data + data
  
    
def urls(md5, location="", option={}):
  c = pycurl.Curl()
  f = CallBack()
  
  c.setopt(pycurl.URL, "http://XXXXXX/getUrl.php?key=%s" % md5)
  c.setopt(pycurl.WRITEFUNCTION, f.func)
  
  c.perform()
  c.close()
  return f.data