ignore things in Lib/test/data/
diff --git a/.hgignore b/.hgignore
index ee1bd43..8056e98 100644
--- a/.hgignore
+++ b/.hgignore
@@ -42,6 +42,7 @@
 *.rej
 *~
 Lib/lib2to3/*.pickle
+Lib/test/data/*
 PCbuild/*.exe
 PCbuild/*.dll
 PCbuild/*.pdb