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bt_helper's Issues

Trying to connect with a failed-to-paired device will casue script to crash

If the device was not successfully paired, and it tries to connect to that device, it will cause bt_helper crash with the following error message:

Pairing of <dbus.proxies._ProxyMethod object at 0x7f1a8b783390> device failed. org.bluez.Error.AuthenticationFailed: Authentication Failed
Traceback (most recent call last):
  File "./pair_mouse", line 28, in <module>
    main()
  File "./pair_mouse", line 20, in main
    dev.pair()
  File "/home/ubuntu/bt_helper/bt_helper.py", line 124, in pair
    self._if.Connect()
  File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 145, in __call__
    **keywords)
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.bluez.Error.Failed: Operation already in progress

This can be solved by simply adding a try to it.

pair() throws "None" even there is exception.

(Pdb) p devices[1].pair()
Pairing of Arc Touch Mouse SE device failed. org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
None

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