How do I update the python lib boto?

I a开发者_如何学运维m using python's boto script, and I haven't touched in a long time and sort of forgot basic python stuff.

How do I update the script? I'm not even sure how I installed it so please guide me to figure out what I have to do.

If you have pip available: pip install -U boto

If you have easy_install available: easy_install -U boto

Otherwise... install pip.