From dfd1f97641ed80ff1c8c2000a2097d1754b85f0b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Szymon=20=C5=81opaciuk?= <szymon.lopaciuk@cern.ch>
Date: Thu, 1 Feb 2018 17:47:49 +0100
Subject: [PATCH] utils: use %-interpolation in strict kw error msg
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Signed-off-by: Szymon Łopaciuk <szymon.lopaciuk@cern.ch>
---
 hepcrawl/utils.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/hepcrawl/utils.py b/hepcrawl/utils.py
index 924530b5..1911ef8e 100644
--- a/hepcrawl/utils.py
+++ b/hepcrawl/utils.py
@@ -419,8 +419,12 @@ def wrapper(self, *args, **kwargs):
 
         if disallowed_kwargs:
             raise TypeError(
-                'Only underscored kwargs allowed in {}. '
-                'Check {} for typos.'.format(repr(func), repr(disallowed_kwargs))
+                'Only underscored kwargs or %s allowed in %s. '
+                'Check %s for typos.' % (
+                    ', '.join(spider_fields),
+                    func,
+                    ', '.join(disallowed_kwargs),
+                )
             )
 
         return func(self, *args, **kwargs)