'HTTPSHandler' and not the type.
diff --git a/Lib/urllib/request.py b/Lib/urllib/request.py
index d360966..3a472f2 100644
--- a/Lib/urllib/request.py
+++ b/Lib/urllib/request.py
@@ -1200,7 +1200,7 @@
 
         https_request = AbstractHTTPHandler.do_request_
 
-    __all__.append(HTTPSHandler)
+    __all__.append('HTTPSHandler')
 
 class HTTPCookieProcessor(BaseHandler):
     def __init__(self, cookiejar=None):