I’ve installed Python version 3.4.3 on all of the shell servers as well as the mail servers (so it can be used in procmail recipes) and the web server (so that it can be used in cgi’s or via php for active web pages).

I installed it in /usr/local/bin so that it wouldn’t interfere with the 2.7.x versions needed by various system utilities.

The full path is: /usr/local/bin/python3