diff -r 6b3523f81f42 -r 26744ad37953 cubicweb/web/views/ajaxcontroller.py
--- a/cubicweb/web/views/ajaxcontroller.py	Fri Apr 05 17:21:14 2019 +0200
+++ b/cubicweb/web/views/ajaxcontroller.py	Fri Apr 05 17:58:19 2019 +0200
@@ -61,13 +61,9 @@
 
 """
 
-
-
+import http.client as http_client
 from functools import partial
 
-from six import PY2, text_type
-from six.moves import http_client
-
 from logilab.common.date import strptime
 from logilab.common.registry import yes
 
@@ -151,7 +147,7 @@
         if result is None:
             return b''
         # get unicode on @htmlize methods, encoded string on @jsonize methods
-        elif isinstance(result, text_type):
+        elif isinstance(result, str):
             return result.encode(self._cw.encoding)
         return result