Check for keystroke

[Brian]

Inside a loop, I need to passively check to see if a key is pressed or not 
without pausing like raw_input does.  Some pseudocode:

While true:
    	If a key is pressed
    	    	which key is pressed
    	
    	do other stuff inside loop


Google groups turned up this thread:

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&safe=off&th=
3221aa1ee6ef2ec2&seekm=2259b0e2.0307310800.3310ec83%
40posting.google.com&frame=off

TinyURL: http://tinyurl.com/4chqh


But neither the pygame or curses solution worked.  Any new thoughts on 
this?