Upgrading question

[s99999999s2003 at yahoo.com]

hi
just want to get some opinions
i am working in unix and my Python version is 2.4.1
I would like to upgrade my version to 2.5 stable. but i have many
scripts already running using 2.4.1. Can i just install 2.5 onto
another directory, and then just change every shebang (#! in first
line) in my script to the new directory? That way, my script will also
run correectly right?
thanks