Random ideas: - IRC - Google Groups / email - testing-in-python mailing list: http://lists.idyll.org/listinfo/testing-in-python - pytest-dev mailing list: https://mail.python.org/mailman/listinfo/pytest-dev - (just for reference) code-quality mailing list: https://mail.python.org/mailman/listinfo/code-quality - Slack I'm not a fan of any of them.