diff --git a/doc/en/goodpractises.txt b/doc/en/goodpractises.txt
index 18f51b1b9..31979618a 100644
--- a/doc/en/goodpractises.txt
+++ b/doc/en/goodpractises.txt
@@ -194,7 +194,8 @@ this to your ``setup.py`` file::
             pass
 
         def run(self):
-            import sys,subprocess
+            import subprocess
+            import sys
             errno = subprocess.call([sys.executable, 'runtests.py'])
             raise SystemExit(errno)