atexit.py doesn't exist

Doc/library/atexit.rst

@@ -11,11 +11,6 @@ The :mod:`atexit` module defines functions to register and unregister cleanup
 functions.  Functions thus registered are automatically executed upon normal
 interpreter termination.
 
-.. seealso::
-
-   Latest version of the :source:`atexit Python source code
-   <Lib/atexit.py>`
-
 Note: the functions registered via this module are not called when the program
 is killed by a signal not handled by Python, when a Python fatal internal error
 is detected, or when :func:`os._exit` is called.
@@ -103,3 +98,4 @@ Usage as a :term:`decorator`::
 
 This obviously only works with functions that don't take arguments.
 
+