$ LOG_LEVEL=DEBUG ./gandi_dyndns.py
2017-08-12 22:07:10,457 [DEBUG] Loading config file...
2017-08-12 22:07:10,457 [DEBUG] Config file loaded.
2017-08-12 22:07:10,459 [DEBUG] Getting external IP...
2017-08-12 22:07:10,993 [DEBUG] Got IP from provider http://ipinfo.io/ip: 92.xxx.xxx.xxx
2017-08-12 22:07:11,137 [DEBUG] Got IP from provider http://ip-api.com/csv: 92.xxx.xxx.xxx
2017-08-12 22:07:11,465 [DEBUG] Got IP from provider http://ventrilo.com/myip.php: 92.xxx.xxx.xxx
2017-08-12 22:07:11,465 [DEBUG] External IP is: 92.xxx.xxx.xxx
2017-08-12 22:07:11,466 [DEBUG] Getting domain info for domain 'cosmico.net'...
2017-08-12 22:07:11,969 [DEBUG] Got domain info.
2017-08-12 22:07:11,969 [DEBUG] Getting zone records for live zone version...
Traceback (most recent call last):
  File "./gandi_dyndns.py", line 357, in <module>
    main(sys.argv)
  File "./gandi_dyndns.py", line 353, in main
    update_ip()
  File "./gandi_dyndns.py", line 248, in update_ip
    zone_records = gandi.domain.zone.record.list(zone_id, 0)
  File "./gandi_dyndns.py", line 69, in __call__
    return getattr(self.proxy, method)(*key_args)
  File "/usr/lib/python2.7/xmlrpclib.py", line 1233, in __call__
    return self.__send(self.__name, args)
  File "/usr/lib/python2.7/xmlrpclib.py", line 1585, in __request
    allow_none=self.__allow_none)
  File "/usr/lib/python2.7/xmlrpclib.py", line 1086, in dumps
    data = m.dumps(params)
  File "/usr/lib/python2.7/xmlrpclib.py", line 633, in dumps
    dump(v, write)
  File "/usr/lib/python2.7/xmlrpclib.py", line 655, in __dump
    f(self, value, write)
  File "/usr/lib/python2.7/xmlrpclib.py", line 659, in dump_nil
    raise TypeError, "cannot marshal None unless allow_none is enabled"
TypeError: cannot marshal None unless allow_none is enabled