Backport source links from 3.x.
Existing links have been updated to use the new reST role. In some
files, I have also made cosmetic changes to the header.
diff --git a/Doc/library/ast.rst b/Doc/library/ast.rst
index d9b2212..5130d00 100644
--- a/Doc/library/ast.rst
+++ b/Doc/library/ast.rst
@@ -13,6 +13,9 @@
.. versionadded:: 2.6
The high-level ``ast`` module containing all helpers.
+**Source code:** :source:`Lib/ast.py`
+
+--------------
The :mod:`ast` module helps Python applications to process trees of the Python
abstract syntax grammar. The abstract syntax itself might change with each
@@ -26,11 +29,6 @@
compiled into a Python code object using the built-in :func:`compile` function.
-.. seealso::
-
- Latest version of the `ast module Python source code
- <http://svn.python.org/view/python/branches/release27-maint/Lib/ast.py?view=markup>`_
-
Node classes
------------