pickle

1) What are Pickling and Unpickling?
Pickling: The pickle module converts any Python object into a byte stream (not a string representation). This byte stream can then be stored in a file, sent over a network, or saved for later use. The function used for pickling is pickle.dump().
Unpickling: The process of retrieving the original Python object from the byte stream (saved during pickling) is called unpickling. The function used for unpickling is pickle.load().

import pickle 

data = {"a": 1, "b": 2} 

with open("data.pkl", "wb") as f: 
    pickle.dump(data, f) 

import pickle 

with open("data.pkl", "rb") as f: 
    data = pickle.load(f) 

print(data)