Add betterssl extra

diff --git a/setup.py b/setup.py
index 9540a47ccc73d7997d9f0dfeb7e09341d1e0eede..6a7c8de983b4afb1332b6f25c468f096f148fb48 100755 (executable)
--- a/setup.py
+++ b/setup.py
@@ -60,4 +60,7 @@ setup(
         'Programming Language :: Python :: 3.4'
 
     ),
+    extras_require={
+        'betterssl': ['pyOpenSSL', 'ndg-httpsclient', 'pyasn1'],
+    },
 )