diff -r 20e62312e016 -r f16c03c7a3d7 tests/test-check-code.t
--- a/tests/test-check-code.t	Mon Feb 04 09:47:13 2019 -0800
+++ b/tests/test-check-code.t	Mon Feb 04 14:00:57 2019 -0800
@@ -22,7 +22,7 @@
   >>> commands = []
   >>> with open('mercurial/debugcommands.py', 'rb') as fh:
   ...     for line in fh:
-  ...         m = re.match(b"^@command\('([a-z]+)", line)
+  ...         m = re.match(br"^@command\('([a-z]+)", line)
   ...         if m:
   ...             commands.append(m.group(1))
   >>> scommands = list(sorted(commands))