def find_proxy(url, host=None):
  """
  Finds proxy string for the given url and host. If host is not
  defined, it's extracted from the url.
  """
  if host is None:
    m = _URL_REGEX.match(url)
    if not m:
      raise URLError(url)
    if len(m.groups()) is 1:
      host = m.groups()[0]
    else:
      raise URLError(url)
  return _pacparser.find_proxy(url, host)
def find_proxy ( url , host = None ) : if host is None : m = _URL_REGEX . match ( url ) if not m : raise URLError ( url ) if len ( m . groups ( ) ) is 1 : host = m . groups ( ) [ 0 ] else : raise URLError ( url ) return _pacparser . find_proxy ( url , host )
Finds proxy string for the given url and host. If host is not
  defined, it's extracted from the url.