Warning about CET timezone

[SuperSandro2000]

/usr/local/lib/python3.7/dist-packages/dateutil/parser/_parser.py:1218: UnknownTimezoneWarning: tzname CET identified but not understood.  Pass `tzinfos` argument in order to correctly return a timezone-aware datetime.  In a future version, this will raise an exception.
  category=UnknownTimezoneWarning)