tests: pytest-catchlog is now integrated in pytest 3.3+ See: https://docs.pytest.org/en/latest/changelog.html?highlight=catchlog#id56 This removes the deprecation warning at the end of the test run: pytest-catchlog plugin has been merged into the core, please remove it from your requirements.

# requirements.txt file for use as "pip install -r requirements.txt" as a
# readthedocs compatible alternative to "pip install -e ." which is a working
# alternative to "setup.py develop" which doesn't work with Mercurial 3.7
.