Shelve is a module used to store objects in a file. It uses Pickle as a help.
Shelve is really easy to use!
import shelve shelve = shelve.open("filename-on-disk")
Now you've got something very similar to a dictionary, although keys can only be strings. To access data use something like this:
MySpecialVariable = shelve['keyname']
Then to save it, it's just like a dict:
shelve['keyname'] = MySpecialVariable
Finally, when you are finished call the close() function:
Using sync() Edit
When you're wanting to write-back to the file in case your program is killed or crashes, you can use the sync() function. To activate it, you need to change the creator like this:
import shelve shelve = shelve.open("filename-on-disk", writeback = True)
Then just use the sync() function when you want to save: