[Tutor] simple, probably stupid question: single key in console / idle

[Sommer, Matthias]

Hello,
 
I'm just starting programming in Python. ATM I do write some smaller practices. In them I want to read single keys, if pressed. If none pressed I do not want to wait.
 
In the library reference I found "kbhit()" and "getch()" from msvcrt. I import msvcrt (running on Windows) but I cant get it to run. Is ther somewhere a sample I could peek on?
And is there somthing not windows specific?
 
My trial code is:
 

import msvcrt
 
def kb():
    while( 1 ):
        if msvcrt.kbhit():
            print "key seen"
            help = msvcrt.getch()
            #if( help < 255 ):
            print help, ord( help )
            if( ord( help ) == 27 ):
                print "cancel"
                break

 
It appears to never see a key. 

Mit freundlichen Grüßen
Matthias Sommer
Entwicklung - Firmware/Elektronik
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