I tested GPT-5.4 Thinking, and it gave me great answers (until I dove deeper) ...
It is tested on Python 2.7, 3.4, 3.5 and 3.6. It requires numpy and scipy.
Abstract: In this paper, we present a coverage-based regression test selection (RTS) approach and a developed tool for Python. The tool can be used either on a developer’s machine or on build servers.