--- a/contrib/import-checker.py	Sun May 15 10:45:32 2016 +0900
+++ b/contrib/import-checker.py	Sun May 15 10:48:05 2016 +0900
@@ -663,7 +663,7 @@
     the input file.
     """
     py = False
-    if f.endswith('.py'):
+    if not f.endswith('.t'):
         with open(f) as src:
             yield src.read(), modname, f, 0
             py = True