IronPython and collections access

[Hoang Do]

I have been able to access global functions and objects with IronPython.
However the following attempt to access collections bombs:

import System
x = System.Collections.BitArray(4)
x[0]

The error message is:
'System.Collections.BitArray' object has no attribute '__getitem__'.   This
is the same error with any classes derived from CollectionsBase.

Has anyone been able to access a collection successfully?

Hoang Do
http://jotsite.com