docs: def set_sessid(sessid):
      """
      Save this current sessid in ``$HOME/.profrc``
      """
      filename = path.join(path.expanduser('~'), '.profrc')
      config = configparser.ConfigParser()
      config.read(filename)
      config.set('DEFAULT', 'Session', sessid)
      with open(filename, 'w') as configfile:
          print("write a new sessid")
          config.write(configfile)