Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60735-60751 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r60735 | raymond.hettinger | 2008-02-11 23:53:01 +0100 (Mon, 11 Feb 2008) | 1 line

  Add notes on how decimal fits into the model.
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  r60737 | raymond.hettinger | 2008-02-12 00:34:56 +0100 (Tue, 12 Feb 2008) | 1 line

  Fix markup
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  r60738 | raymond.hettinger | 2008-02-12 00:38:00 +0100 (Tue, 12 Feb 2008) | 1 line

  Backport ABC docs
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  r60739 | raymond.hettinger | 2008-02-12 01:15:32 +0100 (Tue, 12 Feb 2008) | 1 line

  Restore fractions.rst to the document tree.
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  r60740 | raymond.hettinger | 2008-02-12 01:48:20 +0100 (Tue, 12 Feb 2008) | 1 line

  Fix typo in comments
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  r60741 | raymond.hettinger | 2008-02-12 02:18:03 +0100 (Tue, 12 Feb 2008) | 1 line

  Bring decimal a bit closer to the spec for Reals.
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  r60743 | martin.v.loewis | 2008-02-12 14:47:26 +0100 (Tue, 12 Feb 2008) | 2 lines

  Patch #1736: Fix file name handling of _msi.FCICreate.
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  r60745 | kurt.kaiser | 2008-02-12 16:45:50 +0100 (Tue, 12 Feb 2008) | 2 lines

  what??! Correct r60225.
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  r60747 | martin.v.loewis | 2008-02-12 19:47:34 +0100 (Tue, 12 Feb 2008) | 4 lines

  Patch #1966: Break infinite loop in httplib when the servers
  implements the chunked encoding incorrectly.
  Will backport to 2.5.
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  r60749 | raymond.hettinger | 2008-02-12 20:05:36 +0100 (Tue, 12 Feb 2008) | 1 line

  dict.copy() rises from the ashes.  Revert r60687.
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diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index f70ccb6..e18dfcf 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -12,10 +12,18 @@
 there are two datatypes, :class:`deque` and :class:`defaultdict`, and
 one datatype factory function, :func:`namedtuple`. 
 
+Besides the containers provided here, the optional :mod:`bsddb`
+module offers the ability to create in-memory or file based ordered 
+dictionaries with string keys using the :meth:`bsddb.btopen` method.
+
+In addition to containers, the collections module provides some ABCs
+(abstract base classes) that can be used to test whether a class 
+provides a particular interface, for example, is it hashable or
+a mapping. 
+
 The specialized containers provided in this module provide alternatives
 to Python's general purpose built-in containers, :class:`dict`, 
 :class:`list`, :class:`set`, and :class:`tuple`.
-
 Besides the containers provided here, the optional :mod:`bsddb`
 module offers the ability to create in-memory or file based ordered 
 dictionaries with string keys using the :meth:`bsddb.btopen` method.
@@ -128,7 +136,6 @@
 (For more about ABCs, see the :mod:`abc` module and :pep:`3119`.)
 
 
-
 .. _deque-objects:
 
 :class:`deque` objects