Using Python on a new computer?

I want to be able to use python on my school computers. However, I can’t run python without stopping it from closing from errors. Usually I use vim :! python However, python hasn’t been properly installed (panda python I mean, i have it on my flashdrive and run it off there.). What do I do?

Run python with -i argument.

I need to be able to open some code in another directory using ppython without closing on errors. This doesn’t work.