Traceback (most recent call last):

 "<string>", line 1, in <module>

 "./urllib/request.py", line 156, in urlopen

 "./urllib/request.py", line 469, in open

 "./urllib/request.py", line 487, in _open

 "./urllib/request.py", line 447, in _call_chain

 "./urllib/request.py", line 1268, in http_open

 "./urllib/request.py", line 1251, in do_openurllib.error.URLError: <urlopen error [Errno 8] nodename nor servname provided, or not known>
Traceback (most recent call last):


 "<stdin>", line 1, in <module>


 "/usr/local/lib/python3.6/dist-packages/redis/lock.py", line 135, in release

self.do_release(expected_token)


 "/usr/local/lib/python3.6/dist-packages/redis/lock.py", line 146, in do_release

self.redis.transaction(execute_release, name)


 "/usr/local/lib/python3.6/dist-packages/redis/client.py", line 490, in transaction

func_value = func(pipe)


 "/usr/local/lib/python3.6/dist-packages/redis/lock.py", line 143, in execute_release

raise LockError("Cannot release a lock that's no longer owned")
redis.exceptions.LockError: Cannot release a lock that's no longer owned
