code: def is_connection_dropped(conn):  # Platform-specific
      
      sock = getattr(conn, 'sock', False)
      if sock is False:  # Platform-specific: AppEngine
          return False
      if sock is None:  # Connection already closed (such as by httplib).
          return True
      try:
          # Returns True if readable, which here means it's been dropped
          return wait_for_read(sock, timeout=0.0)
      except NoWayToWaitForSocketError:  # Platform-specific: AppEngine
          return False
docs: Returns True if the connection is dropped and should be closed.
  
      :param conn:
          :class:`httplib.HTTPConnection` object.
  
      Note: For platforms like AppEngine, this will always return ``False`` to
      let the platform handle connection recycling transparently for us.