Fixed Issue1424152 in Py3k: urllib2 fails with HTTPS over Proxy.
diff --git a/Doc/library/http.client.rst b/Doc/library/http.client.rst
index 3632242..3d37c1b 100644
--- a/Doc/library/http.client.rst
+++ b/Doc/library/http.client.rst
@@ -386,6 +386,12 @@
.. versionadded:: 2.7
+.. method:: HTTPConnection.set_tunnel(host, port=None)
+
+ Set the host and the port for HTTP Connect Tunnelling. Normally used when it
+ is required to a HTTPS Connection through a proxy server.
+
+ .. versionadded:: 3.1
.. method:: HTTPConnection.connect()