title: How to run python from /usr/local/bin instead of /usr/bin/
body: <p>This morning, I attempted to uninstall both versions of python3 that I had on my system. 3.7.<em>something</em> and 3.6.5_1. After reinstalling using brew, I attempted to use <code>brew switch python 3.6.5_1</code>. All seems well but when I launch python using <code>python3</code>, it launches python 3.7.2 (which I have not explicitly installed). Additionally, when I type <code>which python</code> the output is <code>/user/bin/python</code>. Python3 does appear to be installed in <code>/user/local/bin</code> but is not being used. I think this is my problem, but it could also be something else.</p>