[Tutor] Editing Pickled .dat files

[ryan luna]

Ohhh ok i got it to work! but why isn't the change
permanent? it is "writing" to the file isn't it.

--- Liam Clarke <ml.cyresse at gmail.com> wrote:

> Hi Ryan,
> 
> You're trying to use your file, dictionary.dat like
> a dictionary data
> structure in Python.
> They don't work the same way.
> 
> So.
> 
> pickle_file = open("dictionary.dat", "r")
> dictionary = cPickle.load(pickle_file)
> pickle_file.close()
> 
> elif choice == "2":
>          pickle_file = open("dictionary.dat", "a")
>         sentence = raw_input("Enter the word youd
> like to add: ")
>         if sentence not in dictionary:
>              definition = raw_input("Whats the
> translated version: ")
>               dictionary[sentence] = definition
>              print "\n\t'",sentence,"'", "Has been
> added to the dictionary."
>          else:
>              print "\n\tThat term already exists!"
> 
> 
> Once you're done, you just "repickle" the
> dictionary.
> 
> pickle_file = open("dictionary.dat", "w") #Opened in
> write mode
> cPickle.dump(dictionary, pickle_file)
> pickle_file.close()
> 
> Regards,
> 
> Liam Clarke
>