def __contains__(self, key):
        if key in ('updated', 'updated_parsed'):
            # Temporarily help developers out by keeping the old
            # broken behavior that was reported in issue 310.
            # This fix was proposed in issue 328.
            return dict.__contains__(self, key)
        try:
            self.__getitem__(key)
        except KeyError:
            return False
        else:
            return True
dataset/ETHPy150Open SickRage/SickRage/lib/feedparser/util.py/FeedParserDict.__contains__/original