Having autocompletion (and some other nice stuff) for Python in VIM is not only a nice feature, but something allowing you to be more efficient when programming Python.

First see the result:

Youtube: http://www.youtube.com/watch?v=TNMjbaimk9g

To make the functionality (and color scheme) available, download the tarball (pythonVim.tar.gz) and extract it in your home directory (i.e. /home/your_user_name), execute the installPythonVim.sh file to install the neccessary plugins (make it executable first, e.g. by chmod u+x installPythonVim.sh), and add the content of the .vimrc to your .vimrc file. Next time you start VIM, you should have autocompletion available...

Requires VIM 7.3 or above (check with vim -version). You can get this from the VIM FTP archive at ftp://ftp.vim.org/pub/vim/unix/. Download the archive and extract it, then do the following to install in the local users home directory with Python support enabled:

./configure --with-features=huge --enable-pythoninterp --prefix=$HOME
make all install

Make sure to add $HOME/bin to your $PATH, so the right vim is picked.

 

Source: http://www.lykostech.net/using-vim-as-python-ide/