Add more links to Python sources where the code is short, readable and an informative adjunct to the docs.
diff --git a/Doc/library/quopri.rst b/Doc/library/quopri.rst
index f4674dc..87d70c3 100644
--- a/Doc/library/quopri.rst
+++ b/Doc/library/quopri.rst
@@ -18,6 +18,10 @@
:mod:`base64` module is more compact if there are many such characters, as when
sending a graphics file.
+.. seealso::
+
+ Latest version of the `quopri module Python source code
+ <http://svn.python.org/view/python/branches/release27-maint/Lib/quopri.py?view=markup>`_
.. function:: decode(input, output[,header])