Description
When building gremlin-python on master there are a number of error messages in the logs when the tests complete - they look like this:
[exec] ERROR:asyncio:Task was destroyed but it is pending! [exec] task: <Task pending coro=<WebSocketProtocol13._receive_frame_loop() done, defined at /home/smallette/git/apache/tinkerpop/gremlin-python/target/python3/env/lib/python3.6/site-packages/tornado-6.1-py3.6-linux-x86_64.egg/tornado/websocket.py:1113> wait_for=<Future pending cb=[<TaskWakeupMethWrapper object at 0x7fa0e9f88108>()]> cb=[IOLoop.add_future.<locals>.<lambda>() at /home/smallette/git/apache/tinkerpop/gremlin-python/target/python3/env/lib/python3.6/site-packages/tornado-6.1-py3.6-linux-x86_64.egg/tornado/ioloop.py:688]> [exec] ERROR:asyncio:Task was destroyed but it is pending!