Simple example of use of __setstate__ and __getstate_

class Foo(object):

    def __init__(self, val=2):

        self.val = val

    def __getstate__(self):

        print ("I'm being picked")

        self.val *= 2

        return self.__dict__

    def __setstate__(self, d):

        print("I'm being unpickled with these values:", d)

        self.__dict__ = d

        self.val *= 3

import pickle

f = Foo()

f_string = pickle.dumps(f) # 带s的,可以理解为string

print(f_string)

f_new = pickle.loads(f_string)

print(f_new)

I'm being picked
b'\x80\x03c__main__\nFoo\nq\x00)\x81q\x01}q\x02X\x03\x00\x00\x00valq\x03K\x04sb.'
I'm being unpickled with these values: {'val': 4}
<__main__.Foo object at 0x0000028927245B70>

巴特西

Simple example of use of setstate and getstate

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巴特西

Simple example of use of __setstate__ and __getstate__

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热门文章

Simple example of use of setstate and getstate