diff -r 383fdfa6bba9 -r 268662aac075 mercurial/revlog.py
--- a/mercurial/revlog.py	Thu Aug 22 16:47:31 2019 -0700
+++ b/mercurial/revlog.py	Sun Aug 18 00:45:33 2019 +0300
@@ -65,10 +65,12 @@
     mdiff,
     policy,
     pycompat,
-    repository,
     templatefilters,
     util,
 )
+from .interfaces import (
+    repository,
+)
 from .revlogutils import (
     deltas as deltautil,
     flagutil,