I create 2 python file and from one put a class to a pickle and other take it back. But It doesn't work correctly

Question

First python file:-

class Person:
    def __init__(self, name, age):
        self.a = name
        self.b = age

    def show(self):
        print(self.a)
        print(self.b)


import pickle

Myob = Person()

with open('class.pickle', 'wb') as pick:
    pickle.dump(Myob, pick)

# with open('class.pickle', 'rb') as PickFile:
#     Get_dat = pickle.load(PickFile)
#
# Get_dat.show()

Second File:-

import pickle

with open('class.pickle', 'rb') as PickFile:
    Get_dat = pickle.load(PickFile)

Get_dat.show()

But if I put 2nd file code to 1st file it work correctly(now in comment)

Please help me