diff -r e814f2e1059c -r c703dc95c82e cubicweb/test/unittest_statsd.py
--- a/cubicweb/test/unittest_statsd.py	Tue Oct 09 16:24:12 2018 +0200
+++ b/cubicweb/test/unittest_statsd.py	Mon Oct 29 10:04:31 2018 +0100
@@ -78,7 +78,7 @@
             self.assertIn(value, DATA)
 
     def check_received_ms(self, value):
-        value = re.compile(value.replace('?', '\d'))
+        value = re.compile(value.replace('?', r'\d'))
         for i in range(10):
             if [x for x in DATA if value.match(x)]:
                 break