Traceback (most recent call last):


 "/usr/lib/python3/dist-packages/mitmproxy/master.py", line 86, in run_loop

loop()


 "/usr/lib/python3/dist-packages/urwid/main_loop.py", line 286, in run

self._run()


 "/usr/lib/python3/dist-packages/urwid/main_loop.py", line 384, in _run

self.event_loop.run()


 "/usr/lib/python3/dist-packages/urwid/main_loop.py", line 1484, in run

reraise(*exc_info)


 "/usr/lib/python3/dist-packages/urwid/compat.py", line 55, in reraise

value = tp()
TypeError: 'NoneType' object is not callable

Traceback (most recent call last):


 "/usr/lib/python3.6/logging/__init__.py", line 994, in emit

msg = self.format(record)


 "/usr/lib/python3.6/logging/__init__.py", line 840, in format

return fmt.format(record)


 "/usr/lib/python3.6/logging/__init__.py", line 577, in format

record.message = record.getMessage()


 "/usr/lib/python3.6/logging/__init__.py", line 338, in getMessage

msg = msg % self.args
TypeError: not all arguments converted during string formatting
