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.

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If you have pip available: pip install -U boto

If you have easy_install available: easy_install -U boto

Otherwise... install pip.