code: def get(self, resource):
          
          prefix, path = resource.finder.get_cache_info(resource)
          if prefix is None:
              result = path
          else:
              result = os.path.join(self.base, self.prefix_to_dir(prefix), path)
              dirname = os.path.dirname(result)
              if not os.path.isdir(dirname):
                  os.makedirs(dirname)
              if not os.path.exists(result):
                  stale = True
              else:
                  stale = self.is_stale(resource, path)
              if stale:
                  # write the bytes of the resource to the cache location
                  with open(result, 'wb') as f:
                      f.write(resource.bytes)
          return result
docs: Get a resource into the cache,
  
          :param resource: A :class:`Resource` instance.
          :return: The pathname of the resource in the cache.