Yeah, "pip uninstall neotime neo4j neobolt" then "pip install neo4j" was the winner. Thanks.
For anyone else headed this way, some methods have changed, but wasn't too terrible to update code.
I've also seen this error -- for the first time, recently. And, this is a recent post. What is the server version? Mine is (now) 4.1.0, and so I wonder if the python driver isn't in sync with the new server version.