Install python 3.6 as a side python version on Ubuntu

Install_python.sh

#/bin/bash

sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade
sudo apt-get install build-essential python-dev python-setuptools python-pip python-smbus
sudo apt-get install build-essential libncursesw5-dev libgdbm-dev libc6-dev
sudo apt-get install zlib1g-dev libsqlite3-dev tk-dev libbz2-dev libreadline6-dev ncurses-dev
sudo apt-get install tcl-dev tk-dev python-tk python3-tk blt-demo tix python-tk-dbg python3-tk-dbg
sudo apt-get install libssl-dev openssl

cd ~/Downloads


wget https://www.python.org/ftp/python/3.6.0/Python-3.6.0.tgz
tar xf Python-3.6.0.tgz
cd Python-3.6.0/


make clean
./configure --prefix=/opt/python/python3.6 --enable-optimizations
make
sudo make install