> ;; (setq python-shell-interpreter "C:\\Python27\\python.exe"
> ;;       python-shell-interpreter-args
> ;;       "-i C:\\Python27\\Scripts\\ipython-script.py")
> "
>
> I uncommented the code, but got an error saying "  error: Non-hex digit used for Unicode escape."

How did you get the error? Evaluating that code should work (it does for me).