serious n00b.. NLTK in python 2.7 and 3.5

[pythlang]

Terminal:

Jordans-MBP:~ jordan$ pip3 install -U nltk
Requirement already up-to-date: nltk in /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/nltk-3.2.1-py3.5.egg
Jordans-MBP:~ jordan$

So, how would I be able to use NLTK in the shell command since

$ import nltk

does nothing in the shell command IDLE and only works in terminal?

does it even matter if I use the shell command IDLE if i'm using terminal?