--- a/mercurial/dispatch.py	Thu Sep 07 22:36:54 2017 +0900
+++ b/mercurial/dispatch.py	Sun Sep 03 14:32:11 2017 +0900
@@ -607,20 +607,20 @@
     The values are listed in the order they appear in args.
     The options and values are removed from args.
 
-    >>> args = ['x', '--cwd', 'foo', 'y']
-    >>> _earlygetopt(['--cwd'], args), args
+    >>> args = [b'x', b'--cwd', b'foo', b'y']
+    >>> _earlygetopt([b'--cwd'], args), args
     (['foo'], ['x', 'y'])
 
-    >>> args = ['x', '--cwd=bar', 'y']
-    >>> _earlygetopt(['--cwd'], args), args
+    >>> args = [b'x', b'--cwd=bar', b'y']
+    >>> _earlygetopt([b'--cwd'], args), args
     (['bar'], ['x', 'y'])
 
-    >>> args = ['x', '-R', 'foo', 'y']
-    >>> _earlygetopt(['-R'], args), args
+    >>> args = [b'x', b'-R', b'foo', b'y']
+    >>> _earlygetopt([b'-R'], args), args
     (['foo'], ['x', 'y'])
 
-    >>> args = ['x', '-Rbar', 'y']
-    >>> _earlygetopt(['-R'], args), args
+    >>> args = [b'x', b'-Rbar', b'y']
+    >>> _earlygetopt([b'-R'], args), args
     (['bar'], ['x', 'y'])
     """
     try: