From c51257f4e8e967da53fcbd4406c6f646a9c14d46 Mon Sep 17 00:00:00 2001
From: Simon Sapin <simon.sapin@exyr.org>
Date: Thu, 21 Jun 2012 12:13:00 +0300
Subject: [PATCH] Document the optional dependencies for PNG output.

Hopefully this will help with #2
---
 pages/home.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pages/home.rst b/pages/home.rst
index 101bf03..0e06547 100644
--- a/pages/home.rst
+++ b/pages/home.rst
@@ -94,6 +94,9 @@ pygal uses `lxml <http://lxml.de/>`_ to generate the svg, this is the only neede
 Optional dependencies
 ---------------------
 
+PNG output requires `CairoSVG <http://cairosvg.org/>`_, `tinycss <http://packages.python.org/tinycss/>`_ and `cssselect <http://packages.python.org/cssselect/>`_.
+Install those with ``pip install CairoSVG tinycss cssselect``
+
 Unit testing needs `py.test <http://pytest.org/latest/>`_ or `nosetests <http://readthedocs.org/docs/nose/en/latest/>`_.
 
 Visual testing is based on `flask <http://flask.pocoo.org/>`_.