How can I use pickle to save a dict?

python dictionary pickle
Chachmu picture Chachmu · Jun 27, 2012 · Viewed 459.1k times · Source

I have looked through the information that the Python docs give, but I'm still a little confused. Could somebody post sample code that would write a new file then use pickle to dump a dictionary into it?

Answer

Blender picture Blender · Jun 27, 2012

Try this:

import pickle

a = {'hello': 'world'}

with open('filename.pickle', 'wb') as handle:
    pickle.dump(a, handle, protocol=pickle.HIGHEST_PROTOCOL)

with open('filename.pickle', 'rb') as handle:
    b = pickle.load(handle)

print a == b

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