py23 import in all nontrivial source files and unused import cleanup
diff --git a/Lib/fontTools/ttLib/tables/asciiTable.py b/Lib/fontTools/ttLib/tables/asciiTable.py
index c65a3b3..f8a30d0 100644
--- a/Lib/fontTools/ttLib/tables/asciiTable.py
+++ b/Lib/fontTools/ttLib/tables/asciiTable.py
@@ -1,4 +1,5 @@
 from . import DefaultTable
+from fontTools.misc.py23 import *
 
 
 class asciiTable(DefaultTable.DefaultTable):