diff -r 47fac1692ede -r 9f70512ae2cf mercurial/utils/compression.py
--- a/mercurial/utils/compression.py	Sun Nov 10 07:30:14 2019 -0800
+++ b/mercurial/utils/compression.py	Fri Nov 08 11:19:20 2019 -0800
@@ -29,8 +29,7 @@
 CLIENTROLE = b'client'
 
 compewireprotosupport = collections.namedtuple(
-    r'compenginewireprotosupport',
-    (r'name', r'serverpriority', r'clientpriority'),
+    'compenginewireprotosupport', ('name', 'serverpriority', 'clientpriority'),
 )