diff -r cd42b426028b -r 7533061a6d82 tests/tools/check_source.sh
--- a/tests/tools/check_source.sh	Thu Sep 28 17:20:31 2017 +0300
+++ b/tests/tools/check_source.sh	Thu Sep 28 17:24:33 2017 +0300
@@ -208,6 +208,7 @@
     enable=$enable,C0411          # (wrong-import-order) standard import "import x" comes before "import y"
     enable=$enable,W0108          # (unnecessary-lambda) Lambda may not be necessary
     enable=$enable,C0412          # (ungrouped-imports) Imports from package X are not grouped
+    enable=$enable,C0321          # (multiple-statements) More than one statement on a single line
 
     # enable=$enable,W0403        # relative import
     # enable=$enable,W0622        # (redefined-builtin) Redefining built-in