I just ran into this error using python-dateutil: "can't compare offset-naive and offset-aware datetimes".
I hit this because datetime.now() does no make a "timezone aware" datetime.
But this is easy to fix with this one liner (source: https://stackoverflow.com/a/41624199).
I chose this way because it's Standard Library only, no external dependencies (pytz):
>>> from datetime import datetime, timezone
>>> now = datetime.now()
>>> now # "naive"
datetime.datetime(2023, 1, 13, 13, 12, 43, 868109)
>>> now.replace(tzinfo=timezone.utc) # "aware"
datetime.datetime(2023, 1, 13, 13, 12, 43, 868109, tzinfo=datetime.timezone.utc)
#datetime