Function inner_function

newspaper/utils.py:194–214

Calculate a cache key based on the decorated method signature args[1] indicates the domain of the inputs, we hash on domain!

(*args, **kwargs)

    """
    def do_cache(function):
        def inner_function(*args, **kwargs):
            """Calculate a cache key based on the decorated method signature
            args[1] indicates the domain of the inputs, we hash on domain!
            """
            key = sha1((str(args[1]) +
                        str(kwargs)).encode('utf-8')).hexdigest()
            filepath = os.path.join(cache_folder, key)

            # verify that the cached object exists and is less than
            # X seconds old
            if os.path.exists(filepath):
                modified = os.path.getmtime(filepath)
                age_seconds = time.time() - modified
                if age_seconds < seconds:
                    return pickle.load(open(filepath, "rb"))

            # call the decorated function...
            result = function(*args, **kwargs)
            # ... and save the cached object for next time
            pickle.dump(result, open(filepath, "wb"))
            return result
        return inner_function
    return do_cache