python - pickle 加载错误

Question

这是我的代码

  #my process class----------
  class Process(object):

      def PrintName(self, name):
         print('Your name is : ', name)
    #pickling-------------
    import pickle
    model = Process()
    filename = 'Process.pkl'
    pickle.dump(model, open(filename, 'wb'))

    #loading the pickle-------------

    model = pickle.load(open('Process.pkl', 'rb'))

当我在 jupyter 笔记本上运行上面的代码时，我收到错误 AttributeError: 'module' object has no attribute 'Process',混淆哪一行导致错误

如有任何帮助，我们将不胜感激

Answer 1

在Python中，缩进很重要。由于缩进错误，函数后面的所有内容仍然是 Process 类的一部分。

您可以阅读有关 python 缩进和编码风格的更多信息 here

我根据 PEP8 为您格式化了您的代码，它现在应该可以工作:

import pickle


# my process class----------
class Process(object):

    def PrintName(self, name):
        print('Your name is : ', name)


# pickling-------------
model = Process()
filename = 'Process.pkl'
pickle.dump(model, open(filename, 'wb'))

# loading the pickle-------------

model = pickle.load(open('Process.pkl', 'rb'))