Fix test regex for python3

TypeError messages use quotes in python3 which need to be matched in our
test.

1 files changed, 1 insertions, 1 deletions

diff --git a/test.py b/test.py
index 0312528..8321ac7 100755
--- a/test.py
+++ b/test.py
@@ -644,7 +644,7 @@ rule.1: cuckoo_score
 higher_than: foo''')
         with self.assertRaisesRegexp(
                 ValueError,
-                r'could not convert string to float: foo'):
+                r"could not convert string to float: '?foo'?"):
             RulesetEngine(ruleset_config=config, db_con=None)
 
     def test_disabled_config(self):