I am trying to reference an inner class from another inner class. I have tried both :

class Foo(object):

  class A(object):
    pass

  class B(object):
    other = A

and

class Foo(object):

  class A(object):
    pass

  class B(object):
    other = Foo.A

with respective results:

Traceback (most recent call last):
  File "python", line 1, in 
  File "python", line 6, in Foo
  File "python", line 7, in B
NameError: name 'A' is not defined

and

Traceback (most recent call last):
  File "python", line 1, in 
  File "python", line 6, in Foo
  File "python", line 7, in B
NameError: name 'Foo' is not defined

Is this possible?