install vim 7.4 on ubuntu 12.04
$ sudo add-apt-repository ppa:fcwu-tw/ppa
$ sudo apt-get update
$ sudo apt-get install vim
refs for compile vim with python support
https://github.com/Valloric/YouCompleteMe/wiki/Building-Vim-from-source
http://zaiste.net/2013/05/compiling_vim_with_ruby_and_python_support_on_ubuntu/
ref for pathogen
https://github.com/tpope/vim-pathogen
ref for vim+python mode
https://github.com/klen/python-mode
ref for vim+comments
https://github.com/scrooloose/nerdcommenter
ref for file explore
https://github.com/scrooloose/nerdtree
vim as a python IDE
http://michiganlabs.com/vim-python-ide/#.VNIIKy788mM
tmux issues
https://www.snip2code.com/Snippet/204599/tmux-installation-steps-for-Ubuntu
sudo apt-get update
sudo apt-get install -y python-software-properties software-properties-common
sudo add-apt-repository -y ppa:pi-rho/dev
sudo apt-get update
sudo apt-get install -y tmux=1.9a-1ppa1t
tmux -V
$ tmux attach
protocol version mismatch (client 7, server 6)
$ pgrep tmux
3429
$ /proc/3429/exe attach