diff -r 1ceb91974dc4 Lib/test/test_urllib2.py
--- a/Lib/test/test_urllib2.py	Sat Apr 30 01:30:57 2016 +0000
+++ b/Lib/test/test_urllib2.py	Sun May 01 00:38:36 2016 +0800
@@ -480,8 +480,8 @@
     # Useful for testing the Proxy-Authorization request by verifying the
     # properties of httpcon
 
-    def __init__(self):
-        urllib.request.AbstractHTTPHandler.__init__(self)
+    def __init__(self, debuglevel=0):
+        urllib.request.AbstractHTTPHandler.__init__(self, debuglevel)
         self.httpconn = MockHTTPClass()
 
     def https_open(self, req):
@@ -950,6 +950,13 @@
             newreq = h.do_request_(req)
             self.assertEqual(int(newreq.get_header('Content-length')),16)
 
+    def test_http_handler_debuglevel(self):
+        o = OpenerDirector()
+        h = MockHTTPSHandler(debuglevel=1)
+        o.add_handler(h)
+        o.open("https://example.com/")
+        self.assertEqual(h.httpconn.level, 1)
+
     def test_http_doubleslash(self):
         # Checks the presence of any unnecessary double slash in url does not
         # break anything. Previously, a double slash directly after the host