Traceback (most recent call last):


 "test.py", line 9, in <module>

print(move,board.san(move))


 "/usr/local/lib/python3.6/site-packages/chess/__init__.py", line 2410, in san

return self._algebraic(move)


 "/usr/local/lib/python3.6/site-packages/chess/__init__.py", line 2458, in _algebraic

san = PIECE_SYMBOLS[piece].upper()
TypeError: list indices must be integers or slices, not NoneType

2017-03-27 14:32:15,578 [tornado.application
][ERROR
][25177] Future exception was never retrieved: Traceback (most recent call last):


 "/usr/lib/python2.7/dist-packages/tornado/gen.py", line 230, in wrapper

yielded = next(result)


 "/usr/lib/python2.7/dist-packages/salt/transport/zeromq.py", line 606, in handle_message

stream.send(self.serial.dumps(self._auth(payload['load'])))


 "/usr/lib/python2.7/dist-packages/salt/transport/mixins/auth.py", line 389, in _auth

if not os.path.isfile(pubfn) and not self.opts['open_mode']:


 "/usr/lib/python2.7/genericpath.py", line 29, in isfile

st = os.stat(path)
TypeError: must be encoded string without NULL bytes, not str
