Python 3.7: Cannot send an int

[aalex]

Traceback (most recent call last):
  File "/Users/aalex/src/biosynth/biosynth/gui.py", line 101, in _combo_box_cb
    self.send_osc(row_controls.osc_path, int(combo_box.GetValue()))
  File "/Users/aalex/src/biosynth/biosynth/gui.py", line 90, in send_osc
    self._osc_sender.send_something(osc_address, value)
  File "/Users/aalex/src/biosynth/biosynth/oscsender.py", line 26, in send_something
    self._send(osc.Message(osc_address, value))
  File "/usr/local/lib/python3.7/site-packages/txosc/osc.py", line 55, in __init__
    self.add(arg)
  File "/usr/local/lib/python3.7/site-packages/txosc/osc.py", line 84, in add
    value = createArgument(value)
  File "/usr/local/lib/python3.7/site-packages/txosc/osc.py", line 660, in createArgument
    return _types[kind](value)
  File "/usr/local/lib/python3.7/site-packages/txosc/osc.py", line 256, in __init__
    self._check_type()
  File "/usr/local/lib/python3.7/site-packages/txosc/osc.py", line 371, in _check_type
    if type(self.value) not in [int, long]:
NameError: name 'long' is not defined