--- a/tests/tools/check_source.sh	Fri Sep 22 20:12:22 2017 +0300
+++ b/tests/tools/check_source.sh	Thu Sep 28 12:20:40 2017 +0300
@@ -201,11 +201,14 @@
     disable=$disable,W0511 # fixme
 
     enable=
-    enable=$enable,E1601          # print statement used    
-    enable=$enable,C0325          # (superfluous-parens) Unnecessary parens after keyword
+    enable=$enable,E1601          # print statement used
+    enable=$enable,C0325          # (superfluous-parens) Unnecessary parens after keyword    
     enable=$enable,W0404          # reimported module    
+    # enable=$enable,C1001          # (old-style-class) Old-style class defined. Problem with PyJS
 
     # enable=$enable,W0403        # relative import
+    # enable=$enable,W0622        # (redefined-builtin) Redefining built-in
+    # enable=$enable,W0612        # unused-variable
 
     # enable=