virtualenv_install_emacs
Goal
This helper aims at injecting a custom version of emacs with package.el enabled into an existing virtualenv. If package.el does not exist (typically for emacs 23.x), we'll attempt to bootstrap one. Also, a version of ert will be installed.
From now on, using $VIRTUAL_ENV/bin/emacs should result in a package-ready Emacs.
In the future, this should enable usage of tox for testing easily with multiple Emacs versions.
Example
$ python virtualenv_install_emacs --with-emacs=/usr/bin/emacs23