Merged revisions 62021,62029,62035-62038,62043-62044,62052-62053 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r62021 | benjamin.peterson | 2008-03-28 18:11:01 -0500 (Fri, 28 Mar 2008) | 2 lines

  NIL => NULL
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  r62029 | amaury.forgeotdarc | 2008-03-28 20:42:31 -0500 (Fri, 28 Mar 2008) | 3 lines

  Correctly call the base class tearDown();
  otherwise running test_logging twice produce the errors we see on all buildbots
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  r62035 | raymond.hettinger | 2008-03-29 05:42:07 -0500 (Sat, 29 Mar 2008) | 1 line

  Be explicit about what efficient means.
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  r62036 | georg.brandl | 2008-03-29 06:46:18 -0500 (Sat, 29 Mar 2008) | 2 lines

  Fix capitalization.
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  r62037 | amaury.forgeotdarc | 2008-03-29 07:42:54 -0500 (Sat, 29 Mar 2008) | 5 lines

  lib2to3 should install a logging handler only when run as a main program,
  not when used as a library.

  This may please the buildbots, which fail when test_lib2to3 is run before test_logging.
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  r62043 | benjamin.peterson | 2008-03-29 10:24:25 -0500 (Sat, 29 Mar 2008) | 3 lines

  #2503 make singletons compared with "is" not == or !=
  Thanks to Wummel for the patch
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  r62044 | gerhard.haering | 2008-03-29 14:11:52 -0500 (Sat, 29 Mar 2008) | 2 lines

  Documented the lastrowid attribute.
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  r62052 | benjamin.peterson | 2008-03-30 14:35:10 -0500 (Sun, 30 Mar 2008) | 2 lines

  Updated README regarding doc formats
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  r62053 | georg.brandl | 2008-03-30 14:41:39 -0500 (Sun, 30 Mar 2008) | 2 lines

  The other download formats will be available for 2.6 too.
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diff --git a/Lib/plat-mac/videoreader.py b/Lib/plat-mac/videoreader.py
index 42954b7..50f9299 100644
--- a/Lib/plat-mac/videoreader.py
+++ b/Lib/plat-mac/videoreader.py
@@ -188,7 +188,7 @@
 
     def GetVideoFrameRate(self):
         tv = self.videocurtime
-        if tv == None:
+        if tv is None:
             tv = 0
         flags = QuickTime.nextTimeStep|QuickTime.nextTimeEdgeOK
         tv, dur = self.videomedia.GetMediaNextInterestingTime(flags, tv, 1.0)
@@ -199,7 +199,7 @@
         if not time is None:
             self.audiocurtime = time
         flags = QuickTime.nextTimeStep|QuickTime.nextTimeEdgeOK
-        if self.audiocurtime == None:
+        if self.audiocurtime is None:
             self.audiocurtime = 0
         tv = self.audiomedia.GetMediaNextInterestingTimeOnly(flags, self.audiocurtime, 1.0)
         if tv < 0 or (self.audiocurtime and tv < self.audiocurtime):
@@ -215,7 +215,7 @@
         if not time is None:
             self.videocurtime = time
         flags = QuickTime.nextTimeStep
-        if self.videocurtime == None:
+        if self.videocurtime is None:
             flags = flags | QuickTime.nextTimeEdgeOK
             self.videocurtime = 0
         tv = self.videomedia.GetMediaNextInterestingTimeOnly(flags, self.videocurtime, 1.0)