--- a/mercurial/debugcommands.py Fri Aug 12 11:30:17 2016 +0900
+++ b/mercurial/debugcommands.py Fri Aug 12 11:35:17 2016 +0900
@@ -1029,6 +1029,8 @@
base85,
bdiff,
mpatch,
+ )
+ from .cext import (
osutil,
)
dir(bdiff), dir(mpatch), dir(base85), dir(osutil) # quiet pyflakes