Python not starting

[DRJ Reddy]

How did you get duplicate genericpath.pyc and stat.pyc files?

If they were duplicates, why didn't they have the right code in them?
It's probably not worth spending any more time investigating, but it is
still rather mysterious.
Steven

When i was running idle on 4th of May,some error came out saying Idle sub-process error i don't remember it correctly,but i wonder how my windows box kept both the files and always loaded the older one instead of new one .