Question

我正在尝试挑选类实例，引用http://stefaanlippens.net/python-pickling-and-dealing-with-attributeerror-module-object-has-no-attribute-thing.html 但是给了我

try.py

import pickle

class abc(object):
      def __init__(self):
         self.a = 10
      def save(self):
         pickle.dump(self,open("try.pkl","wb"))
if __name__ == '__main__':
      a = abc()
      abc.__module__ = "try"
      a.save()

pickle.PicklingError: Can't pickle <class 'try.abc'>: it's not the same object as try.abc

我在这里弄错了吗？对于独立目的而言，pickle对象是否有不同的解决方案

Answer 1

如果你带走了abc.__module__ = "try"，一切正常。

import pickle

class abc(object):
      def __init__(self):
         self.a = 10
      def save(self):
         pickle.dump(self,open("try.pkl","wb"))
if __name__ == '__main__':
      a = abc()
      a.save()

      # proof it worked
      with open('try.pkl','rb') as pkl_file:
          b = pickle.load(pkl_file)
      print(b.a)

我在最后添加了代码以重新加载数据并打印它以显示它是成功的。

试图pickle对象实例抛出酸洗错误

1 个答案: