diff --git a/docs/contributing.rst b/docs/contributing.rst
index 6c70830b8..5ec44470d 100644
--- a/docs/contributing.rst
+++ b/docs/contributing.rst
@@ -371,10 +371,12 @@ are provided here mainly for the :ref:`developers <hacking>` reference.
 In general:
 
 * ``sudo`` is required as a suggested way of running privileged process
+* `Python`_ 2.6/2.7 is required
 * `Augeas`_ is required for the Python bindings
 * ``virtualenv`` and ``pip`` are used for managing other python library
   dependencies
 
+.. _Python: https://wiki.python.org/moin/BeginnersGuide/Download
 .. _Augeas: http://augeas.net/
 .. _Virtualenv: https://virtualenv.pypa.io