Require Feature or Install Package03 Jul 2014, by Artur Malabarba.
A gentleman (or woman) by the name of baam_waak recently asked on
/r/emacs how can one make sure a package gets installed in case
requireing it fails. Sadly, this predicament has no perfect
solution, for you require features, not packages. Fortunately, it has
plenty of solutions that are good enough, since features commonly
share the name of their package.
Motivated by the question, I saw it fit to add this functionality to paradox's arsenal.
(paradox-require 'dash) instead of
(require 'dash) and
the package will be installed if necessary.