--- a/tests/test-progress.t	Wed Aug 02 22:06:45 2017 +0900
+++ b/tests/test-progress.t	Wed Aug 02 22:04:02 2017 +0900
@@ -312,6 +312,7 @@
 from each other.
 
   $ rm -f loop.pyc
+  $ rm -Rf __pycache__
   $ cat >> loop.py <<EOF
   > # use non-ascii characters as loop items of progress
   > loopitems = [
branch	stable
changeset 33622	b4793cc8e1c0
parent 33109	fce4ed2912bb
child 34002	a37417e30a1f