IDLE detection code snippet

[Jesse W]

Dear IDLE-devl members,
	A problem that has been faced by people many times is that of 
detecting when IDLE is running.  I think this code is a solution to 
that problem.  Please try it out and see if it works consistently.

						Jesse Weinstein

def IDLEtest():
    """Returns 1 when IDLE is running, 0 else.
    Please let me know (through the IDLE-devl list) if you find
    a situation where this gives the wrong answer."""
    import sys
    try:
        if sys.stdin.__module__=='PyShell':
            return 1
        else:
            return 0
    except AttributeError:
        return 0