def clear_calendars(self):
        """
        Deregisters all current registered calendars
        """
        self._calendars.clear()
        self._calendar_factories.clear()
        self._aliases.clear()
def clear_calendars ( self ) : self . _calendars . clear ( ) self . _calendar_factories . clear ( ) self . _aliases . clear ( )
Deregisters all current registered calendars