explicitly close file object (#21128)

diff --git a/Lib/test/test_httpservers.py b/Lib/test/test_httpservers.py
index 359694a4815df954cda65cae362495f0a8356a58..88e2e854a52d7cc2718c3fd5190d7fbc07533087 100644 (file)
--- a/Lib/test/test_httpservers.py
+++ b/Lib/test/test_httpservers.py
@@ -335,6 +335,7 @@ class SimpleHTTPServerTestCase(BaseTestCase):
             response = self.request(self.tempdir_name + '/')
             self.check_status_and_reason(response, 404)
             os.chmod(self.tempdir, 0755)
+        f.close()    
 
     def test_head(self):
         response = self.request(