[IronPython] no input display with 'raw_input()'

[Ben Aurel]

hi

Using the following statement in CPython:
   fname = raw_input('Enter filename: ')

I can see what I'm typing.
 >>> Enter filename: MyTextFi...

This is not the case with the same code on IronPython. It doesn't show 
me my input while typing.

Thanks
Ben