def handle_GET(self, request, context):
        feeds = Feed.events.all()
        
        # Only actually care about showing feeds in the right language, not
        # dialect, so only match on before the -
        lang_code = get_language()
        if '-' in lang_code:
            lang_code = lang_code.split('-')[0]
        
        all_feeds = feeds.count()
        if request.GET not in 'all':
            feeds = feeds.filter(
                Q(language__startswith=lang_code) | Q(language=None)
            )
        lang_feeds = feeds.count()
        
        context= {
            'feeds': feeds,
            'more_in_all': lang_feeds != all_feeds,
        }
        return self.render(request, context, 'feeds/events/index',
                           expires=timedelta(days=7))
dataset/ETHPy150Open mollyproject/mollyproject/molly/apps/feeds/events/views.py/IndexView.handle_GET/swapped operands of `not in`