Pickle (англ. консервировать, мариновать) — модуль сериализации и десериализации объектов в Python для последующей их передачи.

import pickle
file = "file.out"
data = [120, 64, 97]
with open(file, "wb") as f:
    pickle.dump(data, f)
with open(file, "rb") as f:
    data = pickle.load(f)
    print(data)

Чтение и запись бинарного файла

Pickle

file_name = "file.out"

data = [120, 64, 97]

file_name = "file.out"


byteData = bytearray(data)

with open(file_name, "wb") as f:

    f.write(byteData)


with open(file_name, "rb") as f:

    data = f.read()

    list_data = list(data)

    print(list_data)

import pickle, os


file = "file.out"

data = [120, 64, 97]

with open(file, "wb") as f:

    pickle.dump(data, f)


with open(file, "rb") as f:

    data = pickle.load(f)

    print(data)