recipe-576869.py 文件源码

def cached(func):
  cache = {}
  def template(*args): #: template is wrapper; func is wrapped
    key = (func, )+args
    try:
      ret = cache[key]
    except KeyError:
      ret = func(*args)
      cache[key] = ret
    else:
      pass
    return ret

  functools.update_wrapper(template, func)
  return template