Merged revisions 75149,75260-75263,75265-75267,75292,75300,75376,75405,75429-75433,75437,75445,75501,75551,75572,75589-75591,75657,75742,75868,75952-75957,76057,76105,76139,76143,76162,76223 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r75149 | gregory.p.smith | 2009-09-29 16:56:31 -0500 (Tue, 29 Sep 2009) | 3 lines

  Mention issue6972 in extractall docs about overwriting things outside of
  the supplied path.
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  r75260 | andrew.kuchling | 2009-10-05 16:24:20 -0500 (Mon, 05 Oct 2009) | 1 line

  Wording fix
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  r75261 | andrew.kuchling | 2009-10-05 16:24:35 -0500 (Mon, 05 Oct 2009) | 1 line

  Fix narkup
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  r75262 | andrew.kuchling | 2009-10-05 16:25:03 -0500 (Mon, 05 Oct 2009) | 1 line

  Document 'skip' parameter to constructor
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  r75263 | andrew.kuchling | 2009-10-05 16:25:35 -0500 (Mon, 05 Oct 2009) | 1 line

  Note side benefit of socket.create_connection()
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  r75265 | andrew.kuchling | 2009-10-05 17:31:11 -0500 (Mon, 05 Oct 2009) | 1 line

  Reword sentence
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  r75266 | andrew.kuchling | 2009-10-05 17:32:48 -0500 (Mon, 05 Oct 2009) | 1 line

  Use standard comma punctuation; reword some sentences in the docs
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  r75267 | andrew.kuchling | 2009-10-05 17:42:56 -0500 (Mon, 05 Oct 2009) | 1 line

  Backport r73983: Document the thousands separator.
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  r75292 | benjamin.peterson | 2009-10-08 22:11:36 -0500 (Thu, 08 Oct 2009) | 1 line

  death to old CVS keyword
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  r75300 | benjamin.peterson | 2009-10-09 16:48:14 -0500 (Fri, 09 Oct 2009) | 1 line

  fix some coding style
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  r75376 | benjamin.peterson | 2009-10-11 20:26:07 -0500 (Sun, 11 Oct 2009) | 1 line

  platform we don't care about
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  r75405 | neil.schemenauer | 2009-10-14 12:17:14 -0500 (Wed, 14 Oct 2009) | 4 lines

  Issue #1754094: Improve the stack depth calculation in the compiler.
  There should be no other effect than a small decrease in memory use.
  Patch by Christopher Tur Lesniewski-Laas.
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  r75429 | benjamin.peterson | 2009-10-14 20:47:28 -0500 (Wed, 14 Oct 2009) | 1 line

  pep8ify if blocks
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  r75430 | benjamin.peterson | 2009-10-14 20:49:37 -0500 (Wed, 14 Oct 2009) | 1 line

  use floor division and add a test that exercises the tabsize codepath
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  r75431 | benjamin.peterson | 2009-10-14 20:56:25 -0500 (Wed, 14 Oct 2009) | 1 line

  change test to what I intended
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  r75432 | benjamin.peterson | 2009-10-14 22:05:39 -0500 (Wed, 14 Oct 2009) | 1 line

  some cleanups
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  r75433 | benjamin.peterson | 2009-10-14 22:06:55 -0500 (Wed, 14 Oct 2009) | 1 line

  make inspect.isabstract() always return a boolean; add a test for it, too #7069
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  r75437 | benjamin.peterson | 2009-10-15 10:44:46 -0500 (Thu, 15 Oct 2009) | 1 line

  only clear a module's __dict__ if the module is the only one with a reference to it #7140
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  r75445 | vinay.sajip | 2009-10-16 09:06:44 -0500 (Fri, 16 Oct 2009) | 1 line

  Issue #7120: logging: Removed import of multiprocessing which is causing crash in GAE.
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  r75501 | antoine.pitrou | 2009-10-18 13:37:11 -0500 (Sun, 18 Oct 2009) | 3 lines

  Add a comment about unreachable code, and fix a typo
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  r75551 | benjamin.peterson | 2009-10-19 22:14:10 -0500 (Mon, 19 Oct 2009) | 1 line

  use property api
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  r75572 | benjamin.peterson | 2009-10-20 16:55:17 -0500 (Tue, 20 Oct 2009) | 1 line

  clarify buffer arg #7178
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  r75589 | benjamin.peterson | 2009-10-21 21:26:47 -0500 (Wed, 21 Oct 2009) | 1 line

  whitespace
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  r75590 | benjamin.peterson | 2009-10-21 21:36:47 -0500 (Wed, 21 Oct 2009) | 1 line

  rewrite to be nice to other implementations
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  r75591 | benjamin.peterson | 2009-10-21 21:50:38 -0500 (Wed, 21 Oct 2009) | 4 lines

  rewrite for style, clarify, and comments

  Also, use the hasattr() like scheme of allowing BaseException exceptions through.
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  r75657 | antoine.pitrou | 2009-10-24 07:41:27 -0500 (Sat, 24 Oct 2009) | 3 lines

  Fix compilation error in debug mode.
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  r75742 | benjamin.peterson | 2009-10-26 17:51:16 -0500 (Mon, 26 Oct 2009) | 1 line

  use 'is' instead of id()
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  r75868 | benjamin.peterson | 2009-10-27 15:59:18 -0500 (Tue, 27 Oct 2009) | 1 line

  test expect base classes
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  r75952 | georg.brandl | 2009-10-29 15:38:32 -0500 (Thu, 29 Oct 2009) | 1 line

  Use the correct function name in docstring.
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  r75953 | georg.brandl | 2009-10-29 15:39:50 -0500 (Thu, 29 Oct 2009) | 1 line

  Remove mention of the old -X command line switch.
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  r75954 | georg.brandl | 2009-10-29 15:53:00 -0500 (Thu, 29 Oct 2009) | 1 line

  Use constants instead of magic integers for test result.  Do not re-run with --verbose3 for environment changing tests.
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  r75955 | georg.brandl | 2009-10-29 15:54:03 -0500 (Thu, 29 Oct 2009) | 1 line

  Use a single style for all the docstrings in the math module.
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  r75956 | georg.brandl | 2009-10-29 16:16:34 -0500 (Thu, 29 Oct 2009) | 1 line

  I do not think the "railroad" program mentioned is still available.
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  r75957 | georg.brandl | 2009-10-29 16:44:56 -0500 (Thu, 29 Oct 2009) | 1 line

  Fix constant name.
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  r76057 | benjamin.peterson | 2009-11-02 09:06:45 -0600 (Mon, 02 Nov 2009) | 1 line

  prevent a rather unlikely segfault
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  r76105 | georg.brandl | 2009-11-04 01:38:12 -0600 (Wed, 04 Nov 2009) | 1 line

  #7259: show correct equivalent for operator.i* operations in docstring; fix minor issues in operator docs.
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  r76139 | benjamin.peterson | 2009-11-06 19:04:38 -0600 (Fri, 06 Nov 2009) | 1 line

  spelling
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  r76143 | georg.brandl | 2009-11-07 02:26:07 -0600 (Sat, 07 Nov 2009) | 1 line

  #7271: fix typo.
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  r76162 | benjamin.peterson | 2009-11-08 22:10:53 -0600 (Sun, 08 Nov 2009) | 1 line

  discuss how to use -p
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  r76223 | georg.brandl | 2009-11-12 02:29:46 -0600 (Thu, 12 Nov 2009) | 1 line

  Give the profile module a module directive.
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diff --git a/Lib/inspect.py b/Lib/inspect.py
index 1f1b7f9..c489502 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -238,7 +238,7 @@
 
 def isabstract(object):
     """Return true if the object is an abstract base class (ABC)."""
-    return isinstance(object, type) and object.__flags__ & TPFLAGS_IS_ABSTRACT
+    return bool(isinstance(object, type) and object.__flags__ & TPFLAGS_IS_ABSTRACT)
 
 def getmembers(object, predicate=None):
     """Return all members of an object as (name, value) pairs sorted by name.