腌制类变量和实例变量? [英] Pickle both class variables and instance variables?

问题描述

斑点​​文档指出:当类实例被腌制时，其类的数据不会与它们一起被腌制.只有实例数据才被腌制."谁能提供在腌制和解腌时包括类变量和实例变量的配方?

The pickle documentation states that "when class instances are pickled, their class’s data are not pickled along with them. Only the instance data are pickled." Can anyone provide a recipe for including class variables as well as instance variables when pickling and unpickling?

推荐答案

使用dill代替泡菜，并精确地编码您可能已经做过的事情.

Use dill instead of pickle, and code exactly how you probably have done already.

>>> class A(object):
...   y = 1
...   x = 0
...   def __call__(self, x):
...     self.x = x
...     return self.x + self.y
... 
>>> b = A()
>>> b.y = 4
>>> b(2)
6
>>> b.z = 5
>>> import dill
>>> _b = dill.dumps(b)
>>> b_ = dill.loads(_b)
>>> 
>>> b_.z
5
>>> b_.x
2
>>> b_.y
4
>>>
>>> A.y = 100
>>> c = A()
>>> _c = dill.dumps(c)
>>> c_ = dill.loads(_c)
>>> c_.y
100

这篇关于腌制类变量和实例变量?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！