diff -r 25694a78e4a4 -r 82d9728ace95 hgext/histedit.py
--- a/hgext/histedit.py	Sat Mar 02 13:07:58 2019 -0800
+++ b/hgext/histedit.py	Sat Mar 02 13:15:53 2019 -0800
@@ -953,7 +953,7 @@
     # locale. This sets the locale to the user's default system
     # locale.
     import locale
-    locale.setlocale(locale.LC_ALL, u'')
+    locale.setlocale(locale.LC_ALL, r'')
 except ImportError:
     curses = None