# install requirements depending on python version
# see https://www.python.org/dev/peps/pep-0508/#environment-markers

icalendar >= 5.0.0, < 7.0.0
python-dateutil >= 2.8.1, < 3.0.0
x-wr-timezone == 1.*; python_version >= "3.9"
x-wr-timezone == 0.*; python_version <= "3.8"
backports.zoneinfo; python_version == "3.7" or python_version == "3.8"
tzdata; python_version >= "3.7"