Zenburn themehttp://slinky.imukuppi.org/zenburnpage/

http://caisah.info/emacs-for-python/

Choose your Emacs theme

Use M-x customize-themes and try some themes. Chose one you like. If you don’t like any of the default ones, you can also install your theme using package.
Some popular themes are Zenburn themes. To install them, press M-x package-install zenburn-theme (First M-x Package-install, press Enter and then zenburn-theme. From now on this will be the preferred way of writing composed key shortcuts.) To load it automatically on Emacs startup, add this to your .emacs file:

(load-theme 'zenburn t)

https://github.com/bbatsov/solarized-emacs 

Install solarized like this:M-x package-install solarized-theme
Afterwards - business as usual, just load one of the theme variants with M-x load-theme.