Install python3.5 and ttupython3.5 on ubuntu

Install python3.5 and ttupython3.5 on ubuntu

1 wget https://www.python.org/ftp/python/3.6.0/Python-3.6.0.tar.xz2 xz-d Python-3.6.0.tar.xz3 tar-xvf Python-3.6.0.tar4 cd Python-3.6.05./configure6 make7 sudo make install

Set the default version with priority when both py2 and py3 are available.

1. directly execute these two commands: <br> sudo update-alternatives -- install/usr/bin/python/usr/bin/python2 1002 sudo update-alternatives -- install/usr/bin/python/usr/bin /python3 150

If you want to switch the default version

Sudo update-alternatives -- config python

Enter a number and press enter as prompted.