memo

/usr/lib/python3.9/site-packages/khal/khalendar/khalendar.py:153: PytzUsageWarning: The localize method is no longer necessary, as this time zone supports the fold attribute (PEP 495). For more details on migrating to a PEP 495-compliant implementation, see https://pytz-deprecation-shim.readthedocs.io/en/latest/migration.html
  localized_events = self.get_localized(localize(start), localize(end))

pip3 install tzlocal==2.1