--- a/mercurial/utils/urlutil.py	Fri Jun 11 23:51:27 2021 -0400
+++ b/mercurial/utils/urlutil.py	Fri Jun 11 23:57:14 2021 -0400
@@ -688,7 +688,7 @@
         path to a repo.
         """
         msg = b'getpath is deprecated, use `get_*` functions from urlutil'
-        ui.deprecwarn(msg, '6.0')
+        ui.deprecwarn(msg, b'6.0')
         # Only fall back to default if no path was requested.
         if name is None:
             if not default: