Use super() instead of direct references to the dict superclass.

The forward links are hard references.
The sentinel element is also a weakref proxy
(to break a forward cylce wrapping around the sentinel).

Issue 9840:  Add reprlib.recursive_repr(), a decorator for handling recursive calls to __repr__ methods.

name in a tuple subclass.

svn+ssh://pythondev@svn.python.org/python/trunk

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  r77241 | antoine.pitrou | 2010-01-02 22:12:58 +0100 (sam., 02 janv. 2010) | 4 lines

  Issue #7462: Implement the stringlib fast search algorithm for the `rfind`,
  `rindex`, `rsplit` and `rpartition` methods.  Patch by Florent Xicluna.
........

Merged revisions 70768,71657,71721,71729,71794,71976,72036-72037,72079,72085,72131-72134,72191,72197-72198,72219,72221,72225,72303,72434,72467,72476 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r70768 | andrew.kuchling | 2009-03-30 17:29:15 -0500 (Mon, 30 Mar 2009) | 1 line

  Typo fixes
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  r71657 | vinay.sajip | 2009-04-16 14:07:37 -0500 (Thu, 16 Apr 2009) | 1 line

  Issue #5768: Change to Unicode output logic and test case for same.
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  r71721 | benjamin.peterson | 2009-04-18 14:26:19 -0500 (Sat, 18 Apr 2009) | 1 line

  fix a few nits in unittest.py #5771
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  r71729 | benjamin.peterson | 2009-04-18 16:03:10 -0500 (Sat, 18 Apr 2009) | 1 line

  move test to a more appropiate one
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  r71794 | vinay.sajip | 2009-04-22 07:10:47 -0500 (Wed, 22 Apr 2009) | 2 lines

  Issue #5170: Fixed regression caused when fixing #5768.
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  r71976 | mark.dickinson | 2009-04-26 14:54:55 -0500 (Sun, 26 Apr 2009) | 2 lines

  Fix typo in function name
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  r72036 | georg.brandl | 2009-04-27 12:04:23 -0500 (Mon, 27 Apr 2009) | 1 line

  #5848: small unittest doc patch.
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  r72037 | georg.brandl | 2009-04-27 12:09:53 -0500 (Mon, 27 Apr 2009) | 1 line

  #5840: dont claim we dont support TLS.
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  r72079 | r.david.murray | 2009-04-28 14:02:55 -0500 (Tue, 28 Apr 2009) | 2 lines

  Remove spurious 'u'.
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  r72085 | georg.brandl | 2009-04-28 16:48:35 -0500 (Tue, 28 Apr 2009) | 1 line

  Make the doctests in the docs pass, except for those in the turtle module.
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  r72131 | benjamin.peterson | 2009-04-29 17:43:35 -0500 (Wed, 29 Apr 2009) | 1 line

  fix test_shutil on ZFS #5676
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  r72132 | georg.brandl | 2009-04-29 17:44:07 -0500 (Wed, 29 Apr 2009) | 1 line

  #5878: fix repr of re object.
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  r72133 | benjamin.peterson | 2009-04-29 17:44:15 -0500 (Wed, 29 Apr 2009) | 1 line

  make sure mode is removable while cleaning up test droppings
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  r72134 | benjamin.peterson | 2009-04-29 19:06:33 -0500 (Wed, 29 Apr 2009) | 1 line

  make sure to close file
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  r72191 | michael.foord | 2009-05-02 06:43:06 -0500 (Sat, 02 May 2009) | 9 lines

  Adds an exit parameter to unittest.main(). If False main no longer
  calls sys.exit.

  Closes issue 3379.

  Michael Foord

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  r72197 | benjamin.peterson | 2009-05-02 11:24:37 -0500 (Sat, 02 May 2009) | 1 line

  don't let sys.argv be used in the tests
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  r72198 | andrew.kuchling | 2009-05-02 12:12:15 -0500 (Sat, 02 May 2009) | 1 line

  Add items
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  r72219 | michael.foord | 2009-05-02 15:15:05 -0500 (Sat, 02 May 2009) | 8 lines

  Add addCleanup and doCleanups to unittest.TestCase.

  Closes issue 5679.

  Michael Foord
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  r72221 | benjamin.peterson | 2009-05-02 15:26:53 -0500 (Sat, 02 May 2009) | 1 line

  add myself
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  r72225 | michael.foord | 2009-05-02 17:43:34 -0500 (Sat, 02 May 2009) | 1 line
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  r72303 | benjamin.peterson | 2009-05-04 19:55:24 -0500 (Mon, 04 May 2009) | 1 line

  using sys._getframe(x), where x > 0 doesnt' work on IronPython
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  r72434 | r.david.murray | 2009-05-07 13:09:58 -0500 (Thu, 07 May 2009) | 2 lines

  Pre-opened test file needs to be opened in binary mode.
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  r72467 | georg.brandl | 2009-05-08 07:17:34 -0500 (Fri, 08 May 2009) | 1 line

  Fix name.
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  r72476 | thomas.heller | 2009-05-08 15:09:40 -0500 (Fri, 08 May 2009) | 4 lines

  Add a file that contains diffs between offical libffi files and the
  files in this repository.  Should make it easier to merge new libffi
  versions.
........

are consistent with the corresponding tuple index.