Merged revisions 65209-65216,65225-65226,65233,65239,65246-65247,65255-65256 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r65209 | raymond.hettinger | 2008-07-23 19:08:18 -0500 (Wed, 23 Jul 2008) | 1 line

  Finish-up the partial conversion from int to Py_ssize_t for deque indices and length.
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  r65210 | raymond.hettinger | 2008-07-23 19:53:49 -0500 (Wed, 23 Jul 2008) | 1 line

  Parse to the correct datatype.
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  r65211 | benjamin.peterson | 2008-07-23 21:27:46 -0500 (Wed, 23 Jul 2008) | 1 line

  fix spacing
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  r65212 | benjamin.peterson | 2008-07-23 21:31:28 -0500 (Wed, 23 Jul 2008) | 1 line

  fix markup
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  r65213 | benjamin.peterson | 2008-07-23 21:45:37 -0500 (Wed, 23 Jul 2008) | 1 line

  add some documentation for 2to3
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  r65214 | raymond.hettinger | 2008-07-24 00:38:48 -0500 (Thu, 24 Jul 2008) | 1 line

  Finish conversion from int to Py_ssize_t.
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  r65215 | raymond.hettinger | 2008-07-24 02:04:55 -0500 (Thu, 24 Jul 2008) | 1 line

  Convert from long to Py_ssize_t.
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  r65216 | georg.brandl | 2008-07-24 02:09:21 -0500 (Thu, 24 Jul 2008) | 2 lines

  Fix indentation.
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  r65225 | benjamin.peterson | 2008-07-25 11:55:37 -0500 (Fri, 25 Jul 2008) | 1 line

  teach .bzrignore about doc tools
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  r65226 | benjamin.peterson | 2008-07-25 12:02:11 -0500 (Fri, 25 Jul 2008) | 1 line

  document default value for fillvalue
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  r65233 | raymond.hettinger | 2008-07-25 13:43:33 -0500 (Fri, 25 Jul 2008) | 1 line

  Issue 1592:  Better error reporting for operations on closed shelves.
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  r65239 | benjamin.peterson | 2008-07-25 16:59:53 -0500 (Fri, 25 Jul 2008) | 1 line

  fix indentation
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  r65246 | andrew.kuchling | 2008-07-26 08:08:19 -0500 (Sat, 26 Jul 2008) | 1 line

  This sentence continues to bug me; rewrite it for the second time
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  r65247 | andrew.kuchling | 2008-07-26 08:09:06 -0500 (Sat, 26 Jul 2008) | 1 line

  Remove extra words
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  r65255 | skip.montanaro | 2008-07-26 19:49:02 -0500 (Sat, 26 Jul 2008) | 3 lines

  Close issue 3437 - missing state change when Allow lines are processed.
  Adds test cases which use Allow: as well.
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  r65256 | skip.montanaro | 2008-07-26 19:50:41 -0500 (Sat, 26 Jul 2008) | 2 lines

  note robotparser bug fix.
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diff --git a/Lib/shelve.py b/Lib/shelve.py
index d651b9e..c8d9cf5 100644
--- a/Lib/shelve.py
+++ b/Lib/shelve.py
@@ -64,6 +64,16 @@
 
 __all__ = ["Shelf","BsdDbShelf","DbfilenameShelf","open"]
 
+class _ClosedDict(collections.MutableMapping):
+    'Marker for a closed dict.  Access attempts raise a ValueError.'
+
+    def closed(self, *args):
+        raise ValueError('invalid operation on closed shelf')
+    __iter__ = __len__ = __getitem__ = __setitem__ = __delitem__ = keys = closed
+
+    def __repr__(self):
+        return '<Closed Dictionary>'
+
 class Shelf(collections.MutableMapping):
     """Base class for shelf implementations.
 
@@ -127,7 +137,7 @@
             self.dict.close()
         except AttributeError:
             pass
-        self.dict = 0
+        self.dict = _ClosedDict()
 
     def __del__(self):
         if not hasattr(self, 'writeback'):