Python tox first released was in 2010. Tox project started in 2013. I hope in the future authors of open source projects would do some Googling before deciding on name. The reason is people really get confused which one.

Imagine this situation. Instead of tox, someone decided to named the tox project "Python". Tox is very famous in the Python community. This shows how unfortunate people doesn't care about naming.

True, being not in the same namespace resolves the confusion. But a decent chunk of people on this forum might end up using both (assuming the chat application takes off). If it's humanly possible, avoid name collision.

I'll stop belabouring the point.

Doesn't look like the same project. One is the project used for doing testing in Python. The other is a messaging program.