This is a pytest plugin for creating a tmpdir with predefined files and/or directories. It's required for the bst-external testsuite, which is currently ignoring test failures. The source is on PyPI. https://pypi.org/project/pytest-datafiles/ Original source is on github and the license is MIT: https://github.com/omarkohl/pytest-datafiles https://github.com/omarkohl/pytest-datafiles/blob/master/LICENSE The only dependency appears to be pytest (python-pytest or python3-pytest).