many versions on python on linux

[snippsat]

Use pyenv,which make it easy to install and change between versions.
I have a tutorial here.

Example run:

mint@mint ~ $ pyenv install 3.6.2
Downloading Python-3.6.2.tar.xz...
-> https://www.python.org/ftp/python/3.6.2/Python-3.6.2.tar.xz
Installing Python-3.6.2...
Installed Python-3.6.2 to /home/mint/.pyenv/versions/3.6.2
 

# Make python and pip default to 3.6.2 or what version want to use
mint@mint ~ $ pyenv global 3.6.2
 
# Check what's available
mint@mint ~ $ pyenv install --list 
# here will list all version available from 2 to 3,Anaconda,PyPy...ect.
 
# Install the version you desire
mint@mint ~ $ pyenv install anaconda-x.x.x
 
# If just want test out Anaconda is a shell session.
pyenv shell anaconda-x.x.x
 
# It's safe don't mess with OS python 
# Can always go back to system default
mint@mint ~ $ pyenv local system
mint@mint ~ $ python
Python 2.7.12 (default, Nov 19 2016, 06:48:10) 
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> 
mint@mint ~ $ python3
Python 3.5.2 (default, Nov 17 2016, 17:05:23) 
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>