关于 wifi 连接文件/证书的问题

Question

这是我运行学校的 wifi .py 文件进行安全登录时获得的输出。

我“python SecureW2_JoinNow.py”

我已经通过电子邮件向他们发送了相关信息，但想尝试一下并在此处发布，这可能是我的做法。

我无法理解这个错误，尽管最后一行让我认为这是我的问题。

全新安装，所以也许就是这样......

    Traceback (most recent call last):
  File "SecureW2_JoinNow.py", line 252, in <module>
    main()
  File "SecureW2_JoinNow.py", line 248, in main
    nm.connect()
  File "SecureW2_JoinNow.py", line 196, in connect
    wireless_device = nm_iface.GetDeviceByIpIface('wlan0')
  File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 70, in __call__
    return self._proxy_method(*args, **keywords)
  File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 145, in __call__
    **keywords)
  File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.NetworkManager.UnknownDevice: No device found for the requested iface.