File "/usr/local/lib/python3.5/dist-packages/electrum/util.py", line 794, in run_with_except_hook
    run_original(*args2, **kwargs2)
  File "/usr/local/lib/python3.5/dist-packages/electrum/network.py", line 985, in run
    self.wait_on_sockets()
  File "/usr/local/lib/python3.5/dist-packages/electrum/network.py", line 967, in wait_on_sockets
    self.process_responses(interface)
  File "/usr/local/lib/python3.5/dist-packages/electrum/network.py", line 623, in process_responses
    if method.endswith('.subscribe'):