.. _virtualenv: http://pypi.python.org/pypi/virtualenv

.. _python: http://www.python.org/

.. _django: http://www.djangoproject.com/

.. _mercurial: http://mercurial.selenic.com/

.. _subversion: http://subversion.tigris.org/

.. _git: http://git-scm.com/

.. _celery: http://celeryproject.org/

.. _Sphinx: http://sphinx.pocoo.org/

.. _GPL: http://www.gnu.org/licenses/gpl.html

.. _vcs: http://pypi.python.org/pypi/vcs