Patch #1537850: tempfile.NamedTemporaryFile now has a "delete" parameter
which can be set to False to prevent the default delete-on-close
behavior.
diff --git a/Lib/test/test_tempfile.py b/Lib/test/test_tempfile.py
index 2047a63..82f1ea3 100644
--- a/Lib/test/test_tempfile.py
+++ b/Lib/test/test_tempfile.py
@@ -561,11 +561,12 @@
 class test_NamedTemporaryFile(TC):
     """Test NamedTemporaryFile()."""
 
-    def do_create(self, dir=None, pre="", suf=""):
+    def do_create(self, dir=None, pre="", suf="", delete=True):
         if dir is None:
             dir = tempfile.gettempdir()
         try:
-            file = tempfile.NamedTemporaryFile(dir=dir, prefix=pre, suffix=suf)
+            file = tempfile.NamedTemporaryFile(dir=dir, prefix=pre, suffix=suf,
+	                                       delete=delete)
         except:
             self.failOnException("NamedTemporaryFile")
 
@@ -599,6 +600,22 @@
         finally:
             os.rmdir(dir)
 
+    def test_dis_del_on_close(self):
+        # Tests that delete-on-close can be disabled
+        dir = tempfile.mkdtemp()
+	tmp = None
+        try:
+            f = tempfile.NamedTemporaryFile(dir=dir, delete=False)
+            tmp = f.name
+            f.write('blat')
+            f.close()
+            self.failUnless(os.path.exists(f.name),
+                        "NamedTemporaryFile %s missing after close" % f.name)
+        finally:
+            if tmp is not None:
+                os.unlink(tmp)
+            os.rmdir(dir)
+
     def test_multiple_close(self):
         # A NamedTemporaryFile can be closed many times without error