I used to use Python 2.7 and then IDLE was working. I uninstalled it and installed Python 3.1. Right now Idle cannot launch. What should i do to get it running?
NOTE
I too faced the same problem. But at last solved like this -->
Run Python\Lib\idlelib\idle.py as admin, i got the error that the file "recent-files.lst" can't be opened.
So go to your home folder, show hidden files, click on .idlerc and delete the file named "recent-files". Now IDLE is working...