docs: def _connect(self):
          """ Connects our client socket to the backend socket """
          if self is None:
              return
          comm('connecting to 127.0.0.1:%d', self._port)
          address = QtNetwork.QHostAddress('127.0.0.1')
          self.connectToHost(address, self._port)
          if sys.platform == 'darwin':
              self.waitForConnected()