diff -r 2372284d9457 -r 687b865b95ad hgext/bookflow.py
--- a/hgext/bookflow.py	Sun Oct 06 09:45:02 2019 -0400
+++ b/hgext/bookflow.py	Sun Oct 06 09:48:39 2019 -0400
@@ -24,14 +24,14 @@
     registrar,
 )
 
-MY_NAME = 'bookflow'
+MY_NAME = b'bookflow'
 
 configtable = {}
 configitem = registrar.configitem(configtable)
 
-configitem(MY_NAME, 'protect', ['@'])
-configitem(MY_NAME, 'require-bookmark', True)
-configitem(MY_NAME, 'enable-branches', False)
+configitem(MY_NAME, b'protect', [b'@'])
+configitem(MY_NAME, b'require-bookmark', True)
+configitem(MY_NAME, b'enable-branches', False)
 
 cmdtable = {}
 command = registrar.command(cmdtable)
@@ -40,19 +40,19 @@
 def commit_hook(ui, repo, **kwargs):
     active = repo._bookmarks.active
     if active:
-        if active in ui.configlist(MY_NAME, 'protect'):
+        if active in ui.configlist(MY_NAME, b'protect'):
             raise error.Abort(
-                _('cannot commit, bookmark %s is protected') % active
+                _(b'cannot commit, bookmark %s is protected') % active
             )
         if not cwd_at_bookmark(repo, active):
             raise error.Abort(
                 _(
-                    'cannot commit, working directory out of sync with active bookmark'
+                    b'cannot commit, working directory out of sync with active bookmark'
                 ),
-                hint=_("run 'hg up %s'") % active,
+                hint=_(b"run 'hg up %s'") % active,
             )
-    elif ui.configbool(MY_NAME, 'require-bookmark', True):
-        raise error.Abort(_('cannot commit without an active bookmark'))
+    elif ui.configbool(MY_NAME, b'require-bookmark', True):
+        raise error.Abort(_(b'cannot commit without an active bookmark'))
     return 0
 
 
@@ -74,7 +74,7 @@
             if name in marks:
                 raise error.Abort(
                     _(
-                        "bookmark %s already exists, to move use the --rev option"
+                        b"bookmark %s already exists, to move use the --rev option"
                     )
                     % name
                 )
@@ -92,8 +92,8 @@
     if active and not cwd_at_bookmark(repo, active):
         ui.warn(
             _(
-                "working directory out of sync with active bookmark, run "
-                "'hg up %s'"
+                b"working directory out of sync with active bookmark, run "
+                b"'hg up %s'"
             )
             % active
         )
@@ -104,23 +104,23 @@
     if label and not opts.get(r'clean') and not opts.get(r'rev'):
         raise error.Abort(
             _(
-                "creating named branches is disabled and you should use bookmarks"
+                b"creating named branches is disabled and you should use bookmarks"
             ),
-            hint="see 'hg help bookflow'",
+            hint=b"see 'hg help bookflow'",
         )
     return orig(ui, repo, label, **opts)
 
 
 def cwd_at_bookmark(repo, mark):
     mark_id = repo._bookmarks[mark]
-    cur_id = repo.lookup('.')
+    cur_id = repo.lookup(b'.')
     return cur_id == mark_id
 
 
 def uisetup(ui):
-    extensions.wrapfunction(bookmarks, 'update', bookmarks_update)
-    extensions.wrapfunction(bookmarks, 'addbookmarks', bookmarks_addbookmarks)
-    extensions.wrapcommand(commands.table, 'commit', commands_commit)
-    extensions.wrapcommand(commands.table, 'pull', commands_pull)
-    if not ui.configbool(MY_NAME, 'enable-branches'):
-        extensions.wrapcommand(commands.table, 'branch', commands_branch)
+    extensions.wrapfunction(bookmarks, b'update', bookmarks_update)
+    extensions.wrapfunction(bookmarks, b'addbookmarks', bookmarks_addbookmarks)
+    extensions.wrapcommand(commands.table, b'commit', commands_commit)
+    extensions.wrapcommand(commands.table, b'pull', commands_pull)
+    if not ui.configbool(MY_NAME, b'enable-branches'):
+        extensions.wrapcommand(commands.table, b'branch', commands_branch)