How to make python3 command run Python 3.6 instead of 3.5?

environment-variables, linux, python, python-3.x, ubuntu

Solution

do

rm /usr/bin/python3
ln -s /usr/bin/python3.6 /usr/bin/python3

much better solution:

Damn, Python is used throughout much of Ubuntu for system scripts and software, and software relies on having Python (and the commands to start Python) in a certain spot. do back then.

rm /usr/bin/python3 
ln -s /usr/bin/python3.5 /usr/bin/python3

create alias in `~/.bash_aliases`

alias python3='/usr/bin/python3.6'

Scripts can then start with something like:

#!/usr/bin/env python3

Problem

I just downloaded Python 3.6.1, but when I type `python3 -V` in the terminal it's still `Python 3.5.3`. How can I make `python3` point to `Python 3.6`? All versions are in the `/usr/bin/` directory.

Original source