Merged revisions 79297,79310,79382,79425-79427,79450 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r79297 | florent.xicluna | 2010-03-22 18:18:18 +0100 (lun, 22 mar 2010) | 2 lines

  #7668: Fix test_httpservers failure when sys.executable contains non-ASCII bytes.
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  r79310 | florent.xicluna | 2010-03-22 23:52:11 +0100 (lun, 22 mar 2010) | 2 lines

  Issue #8205: Remove the "Modules" directory from sys.path when Python is running from the build directory (POSIX only).
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  r79382 | florent.xicluna | 2010-03-24 20:33:25 +0100 (mer, 24 mar 2010) | 2 lines

  Skip tests which depend on multiprocessing.sharedctypes, if _ctypes is not available.
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  r79425 | florent.xicluna | 2010-03-25 21:32:07 +0100 (jeu, 25 mar 2010) | 2 lines

  Syntax cleanup `== None` -> `is None`
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  r79426 | florent.xicluna | 2010-03-25 21:33:49 +0100 (jeu, 25 mar 2010) | 2 lines

  #8207: Fix test_pep277 on OS X
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  r79427 | florent.xicluna | 2010-03-25 21:39:10 +0100 (jeu, 25 mar 2010) | 2 lines

  Fix test_unittest and test_warnings when running "python -Werror -m test.regrtest"
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  r79450 | florent.xicluna | 2010-03-26 20:32:44 +0100 (ven, 26 mar 2010) | 2 lines

  Ensure that the failed or unexpected tests are sorted before printing.
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diff --git a/Lib/test/test_warnings.py b/Lib/test/test_warnings.py
index dda704e..7bd7191 100644
--- a/Lib/test/test_warnings.py
+++ b/Lib/test/test_warnings.py
@@ -27,11 +27,15 @@
     except NameError:
         pass
     original_warnings = warning_tests.warnings
+    original_filters = module.filters
     try:
+        module.filters = original_filters[:]
+        module.simplefilter("once")
         warning_tests.warnings = module
         yield
     finally:
         warning_tests.warnings = original_warnings
+        module.filters = original_filters
 
 
 class BaseTest(unittest.TestCase):
@@ -194,6 +198,7 @@
     def test_message(self):
         with original_warnings.catch_warnings(record=True,
                 module=self.module) as w:
+            self.module.simplefilter("once")
             for i in range(4):
                 text = 'multi %d' %i  # Different text on each call.
                 self.module.warn(text)
@@ -206,6 +211,7 @@
         for ob in (Warning, None, 42):
             with original_warnings.catch_warnings(record=True,
                     module=self.module) as w:
+                self.module.simplefilter("once")
                 self.module.warn(ob)
                 # Don't directly compare objects since
                 # ``Warning() != Warning()``.