I run this earlier in the code
watch("httpstream")
Subsequently, any py2neo commands that triggers HTTP traffic will result in verbose logging. How can I stop the effect of watch() logging without creating a new Graph instance?
You don't. That is, I've not written a way to do that.
The watch function is intended only as a debugging utility for an interactive console session. You shouldn't need to use it in an application.
How do I stop py2neo watch()?