[Python.NET] Hanging the application in import

[Lalit DIGARI]

Hello All,
I have a module ex say a ,and in module b I m using clr and having code import clr, I m imorting mudule b into module a ,but application is hanging at the point where in moduel a there is import (something) but if I comented the line import clr then application passes through that hanging point any body having any clue to the problem.

Exmaple 

Module a
{
Import module b // hanging point
}

Module b
{
Import CLR //after commenting this line application do not hang
...
...
}

Regard's
Lalit