Simple script like that are unlikely to be much different between Python 2 and 3 unless you are using specific libraries. Just make make all the "prints" into "prints()" and "Exeption, e" into "Exception as e", and I can't see what the differences would be.
Re:Extend Python 2.7 life till 2020
by tonyarkles on Tuesday April 15, 2014 @01:49PM
(#7593227)
The difference is in the effort required to make it run at all!
She's ok with the occasional "sudo pip install ..." to get a library, but if my instructions started with "ok, first install Xcode and then install homebrew" the answer would probably be "it's ok I'll just do it by hand"