code: def get(self, project, date):
          
          fpath = self._path_for_file(project, date)
          logger.debug('Cache GET project=%s date=%s - path=%s',
                       project, date.strftime('%Y-%m-%d'), fpath)
          try:
              with open(fpath, 'r') as fh:
                  data = json.loads(fh.read())
          except:
              logger.debug('Error getting from cache for project=%s date=%s',
                           project, date.strftime('%Y-%m-%d'))
              return None
          data['cache_metadata']['date'] = datetime.strptime(
              data['cache_metadata']['date'],
              '%Y%m%d'
          )
          data['cache_metadata']['updated'] = datetime.fromtimestamp(
              data['cache_metadata']['updated']
          )
          return data
docs: Get the cache data for a specified project for the specified date.
          Returns None if the data cannot be found in the cache.
  
          :param project: PyPi project name to get data for
          :type project: str
          :param date: date to get data for
          :type date: datetime.datetime
          :return: dict of per-date data for project
          :rtype: :py:obj:`dict` or ``None``