Merged revisions 86537,86867-86868,86881,86887,86913-86915,86931-86933,86960,86964,86974,86980,86996,87008,87050 via svnmerge from

svn+ssh://svn.python.org/python/branches/py3k

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  r86537 | georg.brandl | 2010-11-19 23:09:04 +0100 (Fr, 19 Nov 2010) | 1 line

  Do not put a raw REPLACEMENT CHARACTER in the document.
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  r86867 | georg.brandl | 2010-11-29 15:50:54 +0100 (Mo, 29 Nov 2010) | 1 line

  Fix indentation bug.
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  r86868 | georg.brandl | 2010-11-29 15:53:15 +0100 (Mo, 29 Nov 2010) | 1 line

  Fix heading style inconsistencies.
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  r86881 | georg.brandl | 2010-11-30 08:43:28 +0100 (Di, 30 Nov 2010) | 1 line

  #10584: fix bad links.
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  r86887 | georg.brandl | 2010-11-30 15:57:54 +0100 (Di, 30 Nov 2010) | 1 line

  Fix typo.
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  r86913 | georg.brandl | 2010-12-01 16:32:43 +0100 (Mi, 01 Dez 2010) | 1 line

  Add missing word, and add a better reference to the actual function.
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  r86914 | georg.brandl | 2010-12-01 16:36:33 +0100 (Mi, 01 Dez 2010) | 1 line

  #10594: fix parameter names in PyList API docs.
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  r86915 | georg.brandl | 2010-12-01 16:44:25 +0100 (Mi, 01 Dez 2010) | 1 line

  Fix some markup and style in the unittest docs.
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  r86931 | georg.brandl | 2010-12-02 10:06:12 +0100 (Do, 02 Dez 2010) | 1 line

  Fix-up documentation of makedirs().
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  r86932 | david.malcolm | 2010-12-02 17:41:00 +0100 (Do, 02 Dez 2010) | 2 lines

  Fix spelling of Jamie Zawinski's surname in urllib.parse docstring (issue 10606)
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  r86933 | georg.brandl | 2010-12-02 19:02:01 +0100 (Do, 02 Dez 2010) | 1 line

  #10597: fix Py_SetPythonHome docs by pointing to where the meaning of PYTHONHOME is already documented.
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  r86960 | georg.brandl | 2010-12-03 08:55:44 +0100 (Fr, 03 Dez 2010) | 1 line

  #10360: catch TypeError in WeakSet.__contains__, just like WeakKeyDictionary does.
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  r86964 | georg.brandl | 2010-12-03 10:58:38 +0100 (Fr, 03 Dez 2010) | 1 line

  #10549: fix interface of docclass() for text documenter.
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  r86974 | georg.brandl | 2010-12-03 16:30:09 +0100 (Fr, 03 Dez 2010) | 1 line

  Markup consistency fixes.
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  r86980 | georg.brandl | 2010-12-03 18:19:27 +0100 (Fr, 03 Dez 2010) | 1 line

  Fix punctuation.
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  r86996 | georg.brandl | 2010-12-03 20:56:42 +0100 (Fr, 03 Dez 2010) | 1 line

  Fix indentation.
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  r87008 | georg.brandl | 2010-12-04 10:04:04 +0100 (Sa, 04 Dez 2010) | 1 line

  Fix typo.
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  r87050 | georg.brandl | 2010-12-04 18:09:30 +0100 (Sa, 04 Dez 2010) | 1 line

  Fix typo.
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1 files changed, 5 insertions, 1 deletions

diff --git a/Lib/_weakrefset.py b/Lib/_weakrefset.py
index 3de3bda695..42653699a3 100644
--- a/Lib/_weakrefset.py
+++ b/Lib/_weakrefset.py
@@ -66,7 +66,11 @@ class WeakSet:
         return sum(x() is not None for x in self.data)
 
     def __contains__(self, item):
-        return ref(item) in self.data
+        try:
+            wr = ref(item)
+        except TypeError:
+            return False
+        return wr in self.data
 
     def __reduce__(self):
         return (self.__class__, (list(self),),