Python test case management system?

[Mudcat]

I had originally planned on writing my own software for managing test
cases; however new boss = new directive. This will make it more
difficult to get the functionality I need for test cases that are
automated and executed using python.   I've searched for alternatives
but so far haven't come up with any good options.

Does anyone know of a good test case management system written in
python, or possibly another application (either open source or
commercial) that can be extended using python?

Thanks