Export the Wacken schedule to iCalendar format

virtualenv -p python3 env
. env/bin/activate
pip install -r requirements.txt

./mkcal.py running-order.html out.ics

This will download the HTML file from the wacken website, save it to running-order.html, parse it,
and output an iCalendar file to out.ics. You can import that file into Google Calendar.

If there are timezone issues, play around with the convert_to_utc = True or tzinfo = 'Europe/Berlin' variables in the code and run again. These are set to work with Google Calendar, but I'm not sure why it does.