[PATCH 1 of 2] py3: use unicodes in __slots__

[Pulkit Goyal]

# HG changeset patch
# User Pulkit Goyal <7895pulkit at gmail.com>
# Date 1475359694 -19800
#      Sun Oct 02 03:38:14 2016 +0530
# Node ID 78c522f4038485e66c35b6492a627b3f90380220
# Parent  3f4e1c033f40aaa8111de9b8212f05e8e09590aa
py3: use unicodes in __slots__

__slots__ doesnot accepts bytes on Python 3.

diff -r 3f4e1c033f40 -r 78c522f40384 mercurial/util.py
--- a/mercurial/util.py	Fri Sep 30 21:38:47 2016 +0900
+++ b/mercurial/util.py	Sun Oct 02 03:38:14 2016 +0530
@@ -561,7 +561,7 @@
     Holds a reference to nodes on either side as well as a key-value
     pair for the dictionary entry.
     """
-    __slots__ = ('next', 'prev', 'key', 'value')
+    __slots__ = (u'next', u'prev', u'key', u'value')
 
     def __init__(self):
         self.next = None
diff -r 3f4e1c033f40 -r 78c522f40384 tests/test-check-py3-compat.t
--- a/tests/test-check-py3-compat.t	Fri Sep 30 21:38:47 2016 +0900
+++ b/tests/test-check-py3-compat.t	Sun Oct 02 03:38:14 2016 +0530
@@ -17,96 +17,96 @@
   > | xargs $PYTHON3 contrib/check-py3-compat.py \
   > | sed 's/[0-9][0-9]*)$/*)/'
   doc/hgmanpage.py: invalid syntax: invalid syntax (<unknown>, line *)
-  hgext/acl.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/automv.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/blackbox.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/bugzilla.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/censor.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/chgserver.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/children.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/churn.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/clonebundles.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/color.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
+  hgext/acl.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/automv.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/blackbox.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/bugzilla.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/censor.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/chgserver.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/children.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/churn.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/clonebundles.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/color.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
   hgext/convert/bzr.py: error importing module: <SystemError> Parent module 'hgext.convert' not loaded, cannot perform relative import (line *)
-  hgext/convert/common.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/convert/convcmd.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/convert/cvs.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/convert/cvsps.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/convert/darcs.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
+  hgext/convert/common.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/convert/convcmd.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/convert/cvs.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/convert/cvsps.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/convert/darcs.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
   hgext/convert/filemap.py: error importing module: <SystemError> Parent module 'hgext.convert' not loaded, cannot perform relative import (line *)
-  hgext/convert/git.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/convert/gnuarch.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/convert/hg.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/convert/monotone.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/convert/p4.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/convert/subversion.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
+  hgext/convert/git.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/convert/gnuarch.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/convert/hg.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/convert/monotone.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/convert/p4.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/convert/subversion.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
   hgext/convert/transport.py: error importing module: <ImportError> No module named 'svn.client' (line *)
-  hgext/eol.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/extdiff.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/factotum.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/fetch.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/fsmonitor/state.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/fsmonitor/watchmanclient.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/gpg.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/graphlog.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/hgk.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/histedit.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/journal.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/keyword.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/largefiles/basestore.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/largefiles/lfcommands.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/largefiles/lfutil.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
+  hgext/eol.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/extdiff.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/factotum.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/fetch.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/fsmonitor/state.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/fsmonitor/watchmanclient.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/gpg.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/graphlog.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/hgk.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/histedit.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/journal.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/keyword.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/largefiles/basestore.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/largefiles/lfcommands.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/largefiles/lfutil.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
   hgext/largefiles/localstore.py: error importing module: <SystemError> Parent module 'hgext.largefiles' not loaded, cannot perform relative import (line *)
-  hgext/largefiles/overrides.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/largefiles/proto.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/largefiles/remotestore.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/largefiles/reposetup.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/largefiles/storefactory.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/largefiles/uisetup.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
+  hgext/largefiles/overrides.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/largefiles/proto.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/largefiles/remotestore.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/largefiles/reposetup.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/largefiles/storefactory.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/largefiles/uisetup.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
   hgext/largefiles/wirestore.py: error importing module: <SystemError> Parent module 'hgext.largefiles' not loaded, cannot perform relative import (line *)
-  hgext/mq.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/notify.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/pager.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/patchbomb.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/purge.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/rebase.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/record.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/relink.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/schemes.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/share.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/shelve.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/strip.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/transplant.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  hgext/win32text.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/archival.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/bookmarks.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/branchmap.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/bundle2.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/bundlerepo.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/byterange.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/changegroup.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/changelog.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/cmdutil.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/commands.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/commandserver.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/config.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/context.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/copies.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/crecord.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/destutil.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/dirstate.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/discovery.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/dispatch.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
+  hgext/mq.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/notify.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/pager.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/patchbomb.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/purge.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/rebase.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/record.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/relink.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/schemes.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/share.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/shelve.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/strip.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/transplant.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  hgext/win32text.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/archival.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/bookmarks.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/branchmap.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/bundle2.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/bundlerepo.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/byterange.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/changegroup.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/changelog.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/cmdutil.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/commands.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/commandserver.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/config.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/context.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/copies.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/crecord.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/destutil.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/dirstate.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/discovery.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/dispatch.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
   mercurial/encoding.py: error importing module: <TypeError> bytes expected, not str (line *)
-  mercurial/exchange.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/extensions.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/filelog.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/filemerge.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/fileset.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/formatter.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/graphmod.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/help.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/hg.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
+  mercurial/exchange.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/extensions.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/filelog.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/filemerge.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/fileset.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/formatter.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/graphmod.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/help.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/hg.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
   mercurial/hgweb/common.py: error importing module: <SystemError> Parent module 'mercurial.hgweb' not loaded, cannot perform relative import (line *)
   mercurial/hgweb/hgweb_mod.py: error importing module: <SystemError> Parent module 'mercurial.hgweb' not loaded, cannot perform relative import (line *)
   mercurial/hgweb/hgwebdir_mod.py: error importing module: <SystemError> Parent module 'mercurial.hgweb' not loaded, cannot perform relative import (line *)
@@ -116,57 +116,57 @@
   mercurial/hgweb/webcommands.py: error importing module: <SystemError> Parent module 'mercurial.hgweb' not loaded, cannot perform relative import (line *)
   mercurial/hgweb/webutil.py: error importing module: <SystemError> Parent module 'mercurial.hgweb' not loaded, cannot perform relative import (line *)
   mercurial/hgweb/wsgicgi.py: error importing module: <SystemError> Parent module 'mercurial.hgweb' not loaded, cannot perform relative import (line *)
-  mercurial/hook.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/httpconnection.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/httppeer.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
+  mercurial/hook.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/httpconnection.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/httppeer.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
   mercurial/i18n.py: error importing module: <TypeError> bytes expected, not str (line *)
-  mercurial/keepalive.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/localrepo.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/lock.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/mail.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/manifest.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/match.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/mdiff.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/merge.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/minirst.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/namespaces.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/obsolete.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/patch.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/pathutil.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/peer.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/profiling.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/pushkey.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/pvec.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/registrar.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/repair.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/repoview.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/revlog.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/revset.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/scmutil.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/scmwindows.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/similar.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/simplemerge.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/sshpeer.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/sshserver.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/sslutil.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/statichttprepo.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/store.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/streamclone.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/subrepo.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/tagmerge.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/tags.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/templatefilters.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/templatekw.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/templater.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/transaction.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/ui.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/unionrepo.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
-  mercurial/url.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
+  mercurial/keepalive.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/localrepo.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/lock.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/mail.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/manifest.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/match.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/mdiff.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/merge.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/minirst.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/namespaces.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/obsolete.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/patch.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/pathutil.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/peer.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/profiling.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/pushkey.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/pvec.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/registrar.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/repair.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/repoview.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/revlog.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/revset.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/scmutil.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/scmwindows.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/similar.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/simplemerge.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/sshpeer.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/sshserver.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/sslutil.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/statichttprepo.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/store.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/streamclone.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/subrepo.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/tagmerge.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/tags.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/templatefilters.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/templatekw.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/templater.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/transaction.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/ui.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/unionrepo.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
+  mercurial/url.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
   mercurial/util.py: error importing: <TypeError> encode() argument 1 must be str, not bytes (error at i18n.py:*)
-  mercurial/verify.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
+  mercurial/verify.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
   mercurial/win32.py: error importing module: <ImportError> No module named 'msvcrt' (line *)
   mercurial/windows.py: error importing module: <ImportError> No module named 'msvcrt' (line *)
-  mercurial/wireproto.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
+  mercurial/wireproto.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
 
 #endif
 
@@ -174,5 +174,5 @@
   $ hg files 'set:(**.py) and grep(pygments)' | sed 's|\\|/|g' \
   > | xargs $PYTHON3 contrib/check-py3-compat.py \
   > | sed 's/[0-9][0-9]*)$/*)/'
-  hgext/highlight/highlight.py: error importing: <TypeError> __slots__ items must be strings, not 'bytes' (error at util.py:*)
+  hgext/highlight/highlight.py: error importing: <TypeError> is_frozen() argument must be str, not bytes (error at util.py:*)
 #endif