# The ability to build documentation using `python setup.py build_sphinx` 
# has been removed as of Sphinx v7.
# Until the setup script `setup.py` has been changed to setup.cfg
# we cannot use sphinx 7+
sphinx >= 3, <7
sphinx_rtd_theme >= 0.4
pytest >= 6
wheel
# Optional requirements used for tests
biopython >= 1, <2
ase >= 3, <4