Issue #3838: TarFile object assigned to self.tar should be closed explicitly.
Reviewed by Lars Gustäbel.
diff --git a/Lib/test/test_tarfile.py b/Lib/test/test_tarfile.py
index f3bc12d..7e4fd25 100644
--- a/Lib/test/test_tarfile.py
+++ b/Lib/test/test_tarfile.py
@@ -787,6 +787,7 @@
         self.tar.add(self.foo)
 
     def tearDown(self):
+        self.tar.close()
         os.remove(self.foo)
         os.remove(self.bar)