Hello, to make IDLE a more effective tool/rapid prototyping thingy it would be usefull if the python code you write ran in its own thread of execution in some kind of "sandbox" enviroment, seperate from the IDLE IDE, so that if I mess up (e.g. an infinite loop) the whole of IDE won't lock up. Please CC any replies to my mail address (mpe501-at-chello.se) since i'm not subscripted to this mail list. Regards, David