Shifting to Python 3.4.1 on Mac 10.7.5 - how best to get at my modules? <p>So, I want to start using Python 3.4.1. I've got it installed on my machine, etc, and it'll print("hello world!") and according to this post, which seems sensible, I need to leave 2.7 in place for backwards compatibility: <a href="http://stackoverflow.com/questions/5846167/how-to-change-default-python-version">how to change default python version?</a></p> <p>OK great, now, what's the best way to make Python 3 "see" all my great modules I've got installed for 2.7? All my old buddies like Pandas and XLRD are like "No module named Pandas."</p> <p>And yes, all my libraries are in</p> <p>Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages</p> <p>I suspect a lot of reinstallation in my future … </p>