From d7a543e746605b651f64bb448b3fa82fb574f514 Mon Sep 17 00:00:00 2001
From: Richard Huang <flyerhzm@gmail.com>
Date: Wed, 10 Jan 2018 15:16:13 +0800
Subject: [PATCH] force set nsprefix

---
 src/saml2/client.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/saml2/client.py b/src/saml2/client.py
index 14fa65f2a..35ca11478 100644
--- a/src/saml2/client.py
+++ b/src/saml2/client.py
@@ -61,6 +61,8 @@ def prepare_for_authenticate(
         :return: session id and AuthnRequest info
         """
 
+        kwargs["nsprefix"] = {'saml': 'urn:oasis:names:tc:SAML:2.0:assertion',
+                              'samlp': 'urn:oasis:names:tc:SAML:2.0:protocol'}
         reqid, negotiated_binding, info = \
             self.prepare_for_negotiated_authenticate(
                 entityid=entityid,