--- a/hgext3rd/evolve/evolvecmd.py	Wed Mar 21 16:52:46 2018 +0530
+++ b/hgext3rd/evolve/evolvecmd.py	Wed Mar 21 17:04:41 2018 +0530
@@ -134,14 +134,14 @@
         roots = repo.revs('roots(%ld)', targetrevs)
         heads = repo.revs('heads(%ld)', targetrevs)
         if len(roots) > 1 or len(heads) > 1:
-            cheader = "ancestor '%s' split over multiple topological branches."\
-                      "\nchoose an evolve destination:" % orig
+            cheader = _("ancestor '%s' split over multiple topological"
+                        " branches.\nchoose an evolve destination:") % orig
             selectedrev = utility.revselectionprompt(ui, repo, list(heads),
                                                      cheader)
             if selectedrev is None:
-                msg = ("could not solve instability, "
-                       "ambiguous destination: "
-                       "parent split across two branches\n")
+                msg = _("could not solve instability, "
+                        "ambiguous destination: "
+                        "parent split across two branches\n")
                 ui.write_err(msg)
                 return (False, '')
             target = repo[selectedrev]
@@ -656,8 +656,8 @@
         newer = [n for n in newer if n and ctx.node() not in n]
         if newer:
             return base, tuple(ctx._repo[o] for o in newer[0])
-    raise error.Abort("base of divergent changeset %s not found" % ctx,
-                      hint='this case is not yet handled')
+    raise error.Abort(_("base of divergent changeset %s not found") % ctx,
+                      hint=_('this case is not yet handled'))
 
 def _aspiringdescendant(repo, revs):
     """Return a list of changectx which can be stabilized on top of pctx or
@@ -908,27 +908,28 @@
 
     if opts['continue']:
         if opts['any']:
-            raise error.Abort('cannot specify both "--any" and "--continue"')
+            raise error.Abort(_('cannot specify both "--any" and "--continue"'))
         if opts['all']:
-            raise error.Abort('cannot specify both "--all" and "--continue"')
+            raise error.Abort(_('cannot specify both "--all" and "--continue"'))
         if opts['rev']:
-            raise error.Abort('cannot specify both "--rev" and "--continue"')
+            raise error.Abort(_('cannot specify both "--rev" and "--continue"'))
         if opts['stop']:
-            raise error.Abort('cannot specify both "--stop" and "--continue"')
+            raise error.Abort(_('cannot specify both "--stop" and'
+                                ' "--continue"'))
 
     if opts['stop']:
         if opts['any']:
-            raise error.Abort('cannot specify both "--any" and "--stop"')
+            raise error.Abort(_('cannot specify both "--any" and "--stop"'))
         if opts['all']:
-            raise error.Abort('cannot specify both "--all" and "--stop"')
+            raise error.Abort(_('cannot specify both "--all" and "--stop"'))
         if opts['rev']:
-            raise error.Abort('cannot specify both "--rev" and "--stop"')
+            raise error.Abort(_('cannot specify both "--rev" and "--stop"'))
 
     if opts['rev']:
         if opts['any']:
-            raise error.Abort('cannot specify both "--rev" and "--any"')
+            raise error.Abort(_('cannot specify both "--rev" and "--any"'))
         if opts['all']:
-            raise error.Abort('cannot specify both "--rev" and "--all"')
+            raise error.Abort(_('cannot specify both "--rev" and "--all"'))
 
     # Backward compatibility
     if opts['unstable']:
@@ -1113,7 +1114,8 @@
         try:
             ctx = repo[utility._singlesuccessor(repo, repo['.'])]
         except utility.MultipleSuccessorsError as exc:
-            repo.ui.write_err('parent is obsolete with multiple successors:\n')
+            repo.ui.write_err(_('parent is obsolete with multiple'
+                                ' successors:\n'))
             for ln in exc.successorssets:
                 for n in ln:
                     displayer.show(repo[n])
@@ -1146,7 +1148,7 @@
     # Continuation handling
     if contopt:
         if not evolvestate:
-            raise error.Abort('no evolve to continue')
+            raise error.Abort(_('no interrupted evolve to continue'))
         evolvestate.load()
         continueevolve(ui, repo, evolvestate, progresscb)
         if evolvestate['command'] != 'evolve':