How to install and use jedi-vim

1. Remove old Vim first

apt purge vim*

2. Install essential python relyings

apt install python3 python3-dev

3. Pull jedi-vim to local

mkdir ~/.vim
cd ~/.vim
rm * -fr
git clone https://github.com/davidhalter/jedi-vim.git .

4. Install a new Vim version for python support

apt install vim-nox