class A(object):
 class B(object):
  def __init__(self,name,data):
   self.name = name
   self.data = data
 def __init__(self):
   self.container = []

class A(object):
    class B(object):
        def __init__(self, name, data):
            self.name = name
            self.data = data
        def __repr__(self):
            return 'B: <name: {}, data: {}>'.format(self.name, self.data)
    def __init__(self):
        self.container = []
    def addb(self, name, data):
        self.container.append((name, data))
    def getb(self, name):
        for a, b in self.container:
            if a == name:
                return A.B(a, b)
a1 = A()
[a1.addb('test%d'%t, t) for t in xrange(5)]
for t in xrange(5):
    print a1.getb('test%d'%t)
print 'Saving...'
pic = pickle.dumps(a1)
print 'Restoring...'
a2 = pickle.loads(pic)
for t in xrange(5):
    print a2.getb('test%d'%t)