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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def data(self):
 """load and cache data in json format """


        if self.is_obsolete():
            data = self.get_data()
            for datum in data:
                if 'published_parsed' in datum:
                    datum['published_parsed'] = \
                        self.parse_time(datum['published_parsed'])

            try:
                dumped_data = json.dumps(data)
            except:
                self.update_cache(data)
            else:
                self.update_cache(dumped_data)
                return data

        try:
            return json.loads(self.cache_data)
        except:
            return self.cache_data

        return self.get_data()