Python 2 >> 3 .... is their an easy way

Python 2 >> 3 .... is their an easy way?

given python 3 is the future {same as garlic bread and cheese cake!} is their any easy way for it to be done?

I see there is a script "2to3" is this the way to go?

thanks, 

I was having a go at it last night, I'll give it a go on a working setup and see if I've changed everything (didn't realise the gtk3 changes were quite so much.... worth a shot though ever if it doesn't work I would have learnt something.....