Python Pickle Serialization

pickle allows you to serialize and de-serialize Python objects to save them into a file for future use. You can then read this file and extract the stored Python objects, de-serializing them so they can be integrated back into the code’s logic.

You just need the two basic commands: pickle.dump(object, file) and pickle.load(file).

Below, a round trip example:

import pickle

FILENAME = "tmp.pickle"
original_list = ["banana", "apple", "pear"]

with open(FILENAME, "wb") as file:
    pickle.dump(original_list, file)
file.close()

with open(FILENAME, "rb") as file:
    retrieved_list = pickle.load(file)
file.close()

print(retrieved_list) # ["banana", "apple", "pear"]