DbusException complains about missing attribute

[WTFThatPerson]

Well, I implemented that thing into Arch Linux Arm successfully, but it seems that they had changes in Python, so now it doesn't like the way error messages are maintained in bt_speaker.py. I see in journalctl log:
AttributeError: 'DBusException' object has no attribute 'message'
when things go wrong way. It may be corrected by editing print argument to
repr(e)
in last line .
Also a wise idea is to add
After=bluetooth.service
in service config file, I suppose.