commit 6800d93eec1dd339f9dd7456b3b8cf246de55439
author Benjamin Peterson <benjamin@python.org> Sat May 17 15:50:38 2014 -0700
committer Benjamin Peterson <benjamin@python.org> Sat May 17 15:50:38 2014 -0700
tree 13191ede18b300e712cf5aaad9f2c9d53e667028
parent d3d23636cbb2fb305f672fa826c3da6a2dc72384

some platforms apparently don't care about fdopen'ing with a different mode

Lib/test/test_posix.py

diff --git a/Lib/test/test_posix.py b/Lib/test/test_posix.py
index d631562..6da8fb5 100644
--- a/Lib/test/test_posix.py
+++ b/Lib/test/test_posix.py
@@ -195,7 +195,11 @@
         self.fdopen_helper('r', 100)
 
         fd = os.open(test_support.TESTFN, os.O_RDONLY)
-        self.assertRaises(OSError, posix.fdopen, fd, 'w')
+        try:
+            posix.fdopen(fd, 'w')
+        except OSError:
+            # This should happen on most platforms.
+            pass
         os.close(fd) # fd should not be closed.
 
     @unittest.skipUnless(hasattr(posix, 'O_EXLOCK'),