Add more links to Python sources where the code is short, readable and an informative adjunct to the docs.

Doc/library/atexit.rst

@@ -14,6 +14,11 @@ The :mod:`atexit` module defines a single function to register cleanup
 functions.  Functions thus registered are automatically executed upon normal
 interpreter termination.
 
+.. seealso::
+
+   Latest version of the `atexit Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/atexit.py?view=markup>`_
+
 Note: the functions registered via this module are not called when the program
 is killed by a signal, when a Python fatal internal error is detected, or when
 :func:`os._exit` is called.

Doc/library/bisect.rst

@@ -16,6 +16,11 @@ example of the algorithm (the boundary conditions are already right!).
 
 .. versionadded:: 2.1
 
+.. seealso::
+
+   Latest version of the `bisect module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/bisect.py?view=markup>`_
+
 The following functions are provided:
 
 

Doc/library/cmd.rst

@@ -12,6 +12,10 @@ command interpreters.  These are often useful for test harnesses, administrative
 tools, and prototypes that will later be wrapped in a more sophisticated
 interface.
 
+.. seealso::
+
+   Latest version of the `cmd module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/cmd.py?view=markup>`_
 
 .. class:: Cmd([completekey[, stdin[, stdout]]])
 

Doc/library/contextlib.rst

@@ -11,6 +11,11 @@ This module provides utilities for common tasks involving the :keyword:`with`
 statement. For more information see also :ref:`typecontextmanager` and
 :ref:`context-managers`.
 
+.. seealso::
+
+   Latest version of the `contextlib Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/contextlib.py?view=markup>`_
+
 Functions provided:
 
 

Doc/library/dis.rst

@@ -11,6 +11,11 @@ disassembling it. The CPython bytecode which this module takes as an
 input is defined in the file :file:`Include/opcode.h` and used by the compiler
 and the interpreter.
 
+.. seealso::
+
+   Latest version of the `dis module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/dis.py?view=markup>`_
+
 .. impl-detail::
 
    Bytecode is an implementation detail of the CPython interpreter!  No

Doc/library/filecmp.rst

@@ -11,6 +11,11 @@ The :mod:`filecmp` module defines functions to compare files and directories,
 with various optional time/correctness trade-offs. For comparing files,
 see also the :mod:`difflib` module.
 
+.. seealso::
+
+   Latest version of the `filecmp Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/filecmp.py?view=markup>`_
+
 The :mod:`filecmp` module defines the following functions:
 
 

Doc/library/fileinput.rst

@@ -44,6 +44,11 @@ hook must be a function that takes two arguments, *filename* and *mode*, and
 returns an accordingly opened file-like object. Two useful hooks are already
 provided by this module.
 
+.. seealso::
+
+   Latest version of the `fileinput Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/fileinput.py?view=markup>`_
+
 The following function is the primary interface of this module:
 
 

Doc/library/fnmatch.rst

@@ -34,6 +34,10 @@ module.  See module :mod:`glob` for pathname expansion (:mod:`glob` uses
 a period are not special for this module, and are matched by the ``*`` and ``?``
 patterns.
 
+.. seealso::
+
+   Latest version of the `fnmatch Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/fnmatch.py?view=markup>`_
 
 .. function:: fnmatch(filename, pattern)
 

Doc/library/functools.rst

@@ -15,6 +15,11 @@ The :mod:`functools` module is for higher-order functions: functions that act on
 or return other functions. In general, any callable object can be treated as a
 function for the purposes of this module.
 
+.. seealso::
+
+   Latest version of the `functools Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/functools.py?view=markup>`_
+
 The :mod:`functools` module defines the following functions:
 
 ..  function:: cmp_to_key(func)

Doc/library/glob.rst

@@ -16,6 +16,10 @@ matched.  This is done by using the :func:`os.listdir` and
 subshell.  (For tilde and shell variable expansion, use
 :func:`os.path.expanduser` and :func:`os.path.expandvars`.)
 
+.. seealso::
+
+   Latest version of the `glob module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/glob.py?view=markup>`_
 
 .. function:: glob(pathname)
 

Doc/library/heapq.rst

@@ -13,6 +13,11 @@
 This module provides an implementation of the heap queue algorithm, also known
 as the priority queue algorithm.
 
+.. seealso::
+
+   Latest version of the `heapq Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/heapq.py?view=markup>`_
+
 Heaps are arrays for which ``heap[k] <= heap[2*k+1]`` and ``heap[k] <=
 heap[2*k+2]`` for all *k*, counting elements from zero.  For the sake of
 comparison, non-existing elements are considered to be infinite.  The

Doc/library/keyword.rst

@@ -20,3 +20,8 @@ This module allows a Python program to determine if a string is a keyword.
    keywords are defined to only be active when particular :mod:`__future__`
    statements are in effect, these will be included as well.
 
+
+.. seealso::
+
+   Latest version of the `keyword module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/keyword.py?view=markup>`_

Doc/library/linecache.rst

@@ -12,6 +12,11 @@ attempting to optimize internally, using a cache, the common case where many
 lines are read from a single file.  This is used by the :mod:`traceback` module
 to retrieve source lines for inclusion in  the formatted traceback.
 
+.. seealso::
+
+   Latest version of the `linecache module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/linecache.py?view=markup>`_
+
 The :mod:`linecache` module defines the following functions:
 
 

Doc/library/pprint.rst

@@ -28,6 +28,11 @@ width constraint.
 .. versionchanged:: 2.6
    Added support for :class:`set` and :class:`frozenset`.
 
+.. seealso::
+
+   Latest version of the `pprint module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/pprint.py?view=markup>`_
+
 The :mod:`pprint` module defines one class:
 
 .. First the implementation class:

Doc/library/quopri.rst

@@ -18,6 +18,10 @@ few nonprintable characters; the base64 encoding scheme available via the
 :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])
 

Doc/library/repr.rst

@@ -15,6 +15,11 @@ The :mod:`repr` module provides a means for producing object representations
 with limits on the size of the resulting strings. This is used in the Python
 debugger and may be useful in other contexts as well.
 
+.. seealso::
+
+   Latest version of the `repr module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/repr.py?view=markup>`_
+
 This module provides a class, an instance, and a function:
 
 

Doc/library/sched.rst

@@ -10,6 +10,10 @@
 The :mod:`sched` module defines a class which implements a general purpose event
 scheduler:
 
+.. seealso::
+
+   Latest version of the `sched module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/sched.py?view=markup>`_
 
 .. class:: scheduler(timefunc, delayfunc)
 

Doc/library/shelve.rst

@@ -13,6 +13,10 @@ arbitrary Python objects --- anything that the :mod:`pickle` module can handle.
 This includes most class instances, recursive data types, and objects containing
 lots of shared  sub-objects.  The keys are ordinary strings.
 
+.. seealso::
+
+   Latest version of the `shelve module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/shelve.py?view=markup>`_
 
 .. function:: open(filename[, flag='c'[, protocol=None[, writeback=False]]])
 

Doc/library/shutil.rst

@@ -16,6 +16,11 @@ collections of files.  In particular, functions are provided  which support file
 copying and removal. For operations on individual files, see also the
 :mod:`os` module.
 
+.. seealso::
+
+   Latest version of the `shutil module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/shutil.py?view=markup>`_
+
 .. warning::
 
    Even the higher-level file copying functions (:func:`copy`, :func:`copy2`)
@@ -27,6 +32,7 @@ copying and removal. For operations on individual files, see also the
    not be correct. On Windows, file owners, ACLs and alternate data streams
    are not copied.
 
+
 Directory and files operations
 ------------------------------
 

Doc/library/string.rst

@@ -17,6 +17,11 @@ template strings or the ``%`` operator described in the
 :ref:`string-formatting` section. Also, see the :mod:`re` module for
 string functions based on regular expressions.
 
+.. seealso::
+
+   Latest version of the `string module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/string.py?view=markup>`_
+
 
 String constants
 ----------------

Doc/library/tokenize.rst

@@ -13,6 +13,11 @@ implemented in Python.  The scanner in this module returns comments as tokens as
 well, making it useful for implementing "pretty-printers," including colorizers
 for on-screen displays.
 
+.. seealso::
+
+   Latest version of the `tokenize module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/tokenize.py?view=markup>`_
+
 The primary entry point is a :term:`generator`:
 
 .. function:: generate_tokens(readline)

Doc/library/trace.rst

@@ -11,6 +11,10 @@ annotated statement coverage listings, print caller/callee relationships and
 list functions executed during a program run.  It can be used in another program
 or from the command line.
 
+.. seealso::
+
+   Latest version of the `trace module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/trace.py?view=markup>`_
 
 .. _trace-cli:
 

Doc/library/urlparse.rst

@@ -33,6 +33,11 @@ following URL schemes: ``file``, ``ftp``, ``gopher``, ``hdl``, ``http``,
 .. versionadded:: 2.5
    Support for the ``sftp`` and ``sips`` schemes.
 
+.. seealso::
+
+   Latest version of the `urlparse module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/urlparse.py?view=markup>`_
+
 The :mod:`urlparse` module defines the following functions:
 
 

Doc/library/uu.rst

@@ -22,6 +22,11 @@ that, when required, the mode is ``'rb'`` or ``'wb'`` on Windows.
 
 This code was contributed by Lance Ellinghouse, and modified by Jack Jansen.
 
+.. seealso::
+
+   Latest version of the `uu module Python source code
+   <http://svn.python.org/view/python/branches/release27-maint/Lib/uu.py?view=markup>`_
+
 The :mod:`uu` module defines the following functions: