Legal Removal Request

Post: Hi, I'm new here. I have looked through the posted topics but cannot find a match for my problem, so here goes, any help is appreciated. I have everything physically working under python 2. My desire is to use python to program a fairly simple attraction for a local museum : There are 10 nice bright buttons (leds inside) and 5 relays to drive that do various things. I have successfully set up IOPi to use bus1 as the outputs - 10 of them to LEDs, 5 to relays (using a ULN2008 to handle the current) I have also successfully configured the first 10 pins on bus2 to be inputs, and I can read these individually etc. The problem is with getting an interrupt to work, the examples just don't seem to provide enough information for me to understand where I'm going wrong. What I'd like to do is fairly simple (I thought(!)) When idle, flash the buttons randomly and in some pretty patterns, indefinitely, [b]until any button is pressed[/b] (interrupt?) If a button has been pressed, start a simple timer and use the buttons to turn on/off the relays, until the timer expires, at which point, resume the random flashing etc. I have both bits of python working separately just fine and they are very simple, but watching for "any button press" while the "idle" routine runs and then jumping to the "active" routine has me stumped completely and my attempts to use the interrupt capabilities of IOPi have failed miserably. I'm also not a big python user... Does anyone have a [b]complete[/b] python program that uses an IOPi interrupt that I might be able to learn from? I feel that the example code given requires a level of expertise I don't have to make sense of it. Thanks in advance. Sean