Simple example: Python pickle

scratch_18_pickle.py

# Save a dictionary into a pickle file.
# https://wiki.python.org/moin/UsingPickle
import pickle

favorite_color = { "lion": "yellow", "kitty": "red" }
pickle.dump( favorite_color, open( "test.pickle", "wb" ))

# Load the dictionary back from the pickle file.
more_favorite_colors = pickle.load(open( "test.pickle", "rb" ))
# favorite_color is now { "lion": "yellow", "kitty": "red" }