From 3700a9c367148a98d500cc653137dbc1006bdf92 Mon Sep 17 00:00:00 2001
From: Ji-Wei <ji.wei3@zte.com.cn>
Date: Wed, 10 Jan 2018 14:37:52 +0800
Subject: [PATCH] Can not get a valid error message when executing zun attach
 error

When 'zun attach' failed due to the low version of 'websocket-client'

the log error message is
TypeError: unsupported operand type(s) for %: 'error' and 'dict'

Modified to make the error information readable.

Change-Id: Ibcfa6f00d81af3c93828198b2914f1d46edbc7a2
Closes-Bug: #1742113
---
 zun/common/exception.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/zun/common/exception.py b/zun/common/exception.py
index c68c7248e..27433b284 100644
--- a/zun/common/exception.py
+++ b/zun/common/exception.py
@@ -201,7 +201,7 @@ class ZunException(Exception):
             self.message = message
 
         try:
-            self.message = self.message % kwargs
+            self.message = str(self.message) % kwargs
         except KeyError:
             # kwargs doesn't match a variable in the message
             # log the issue and the kwargs