There are a lot of ResourseWarning and DeprecationWarning messages on unittest run that was hidden by python setup.py test and revealed by install package tests that uses direct python -m unittest discover -v command. It is not just an issue of clean log output: it also may result in fail for warning capture tests: https://github.com/tarantool/tarantool-python/actions/runs/3297461689/jobs/5439859418