diff -r 26744ad37953 -r fc45f22c8100 cubicweb/devtools/test/unittest_i18n.py
--- a/cubicweb/devtools/test/unittest_i18n.py	Fri Apr 05 17:58:19 2019 +0200
+++ b/cubicweb/devtools/test/unittest_i18n.py	Tue Mar 26 16:22:31 2019 +0100
@@ -25,8 +25,7 @@
 import sys
 from subprocess import PIPE, Popen, STDOUT
 from unittest import TestCase, main
-
-from mock import patch
+from unittest.mock import patch
 
 from cubicweb.devtools import devctl
 from cubicweb.devtools.testlib import BaseTestCase