shelve

[emf]

# I don't understand why bar isn't being updated,
# or what I need to do to make it be updated...

import shelve
class foo:
   def __init__(self):
       self.bar = 0

class spam:
   def __init__(self):
       self.shelf = shelve.open('test')
       self.shelf['a'] = foo()

   def addOne(self):
       self.shelf['a'].bar = 1

   def printA(self):
       print self.shelf['a'].bar


if __name__ == '__main__':
    b = spam()
    b.addOne()
    b.printA()