diff -r 66a3dc613627 Lib/test/test_shutil.py
--- a/Lib/test/test_shutil.py	Sun Jul 28 02:57:02 2013 +0200
+++ b/Lib/test/test_shutil.py	Sun Jul 28 20:40:03 2013 -0400
@@ -727,6 +727,31 @@
             shutil.rmtree(src_dir)
             shutil.rmtree(os.path.dirname(dst_dir))
 
+    def test_copytree_retains_permissions(self):
+        src_dir = tempfile.mkdtemp()
+        dst_dir = os.path.join(tempfile.mkdtemp(), 'destination')
+        self.addCleanup(shutil.rmtree, src_dir)
+        self.addCleanup(shutil.rmtree, os.path.dirname(dst_dir))
+        
+        os.chmod(src_dir, 0o777)
+        write_file((src_dir, 'permissive.txt'), '123')
+        os.chmod(os.path.join(src_dir, 'permissive.txt'), 0o777)
+        write_file((src_dir, 'restrictive.txt'), '456')
+        os.chmod(os.path.join(src_dir, 'restrictive.txt'), 0o600)
+        restrictive_subdir = tempfile.mkdtemp(dir=src_dir)
+        os.chmod(restrictive_subdir, 0o600)
+       
+        shutil.copytree(src_dir, dst_dir)
+        self.assertEquals(os.stat(src_dir).st_mode, os.stat(dst_dir).st_mode)
+        self.assertEquals(os.stat(os.path.join(src_dir, 'permissive.txt')).st_mode, 
+                          os.stat(os.path.join(dst_dir, 'permissive.txt')).st_mode)
+        self.assertEquals(os.stat(os.path.join(src_dir, 'restrictive.txt')).st_mode, 
+                          os.stat(os.path.join(dst_dir, 'restrictive.txt')).st_mode)
+        restrictive_subdir_dst = os.path.join(dst_dir, 
+                                              os.path.split(restrictive_subdir)[1])
+        self.assertEquals(os.stat(restrictive_subdir).st_mode,
+                          os.stat(restrictive_subdir_dst).st_mode)
+        
     @unittest.skipUnless(hasattr(os, 'link'), 'requires os.link')
     def test_dont_copy_file_onto_link_to_itself(self):
         # Temporarily disable test on Windows.