def build(self, key, name, opened, entry):
        """ Return the content of the file as a string. Override this for better behaviour. """
        try:
            return opened.read()
        finally:
            opened.close()
 Return the content of the file as a string. Override this for better behaviour. 
recipes/Python/302997_Threadsafe_caching_object_file_HTTP/recipe-302997.py