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Saving pickled info and reloading info

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Join Date: Jun 2005

Posts: 146

Reputation: G-Do is an unknown quantity at this point

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G-Do

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Re: Saving pickled info and reloading info

#11

Jun 16th, 2008

Hi count_chockula,

You can indeed edit a dictionary. You would load the dictionary with pickle.load(), then add a new key-value pair, then dump it again, like so:

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f = open("filename.txt", "r")
d = pickle.load(f)
f.close()
d["new_key"] = "new_value"
f = open("filename.txt", "w")
pickle.dump(d, f)
f.close()
f = open("filename.txt", "r")
d = pickle.load(f)
f.close()
d["new_key"] = "new_value"
f = open("filename.txt", "w")
pickle.dump(d, f)
f.close()

Now filename.txt contains the same pickled dictionary from before, but with an addition.