himmel.schedule.xml validates
himmel2.schedule.xml validates
himmel3.schedule.xml validates
 Removing 4 recording optout events from engelsystem sendezentrum schedule
Traceback (most recent call last):
  File "/home/voc/schedule/schedule_38C3.py", line 327, in <module>
    main()
  File "/home/voc/schedule/schedule_38C3.py", line 214, in main
    everything = hub.schedule()
                 ^^^^^^^^^^^^^^
  File "/home/voc/schedule/voc/generic.py", line 25, in schedule
    return Schedule.from_url(self.schedule_url, self.timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/voc/schedule/voc/schedule.py", line 134, in from_url
    schedule_r.raise_for_status()
  File "/usr/lib/python3/dist-packages/requests/models.py", line 1021, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 404 Client Error: Not Found for url: https://api.events.ccc.de/congress/2024/schedule.json