--- a/sat_frontends/jp/cmd_forums.py	Sun Jun 03 13:54:35 2018 +0200
+++ b/sat_frontends/jp/cmd_forums.py	Sun Jun 03 18:05:01 2018 +0200
@@ -24,6 +24,7 @@
 from sat_frontends.jp import common
 from sat.tools.common.ansi import ANSI as A
 from functools import partial
+import codecs
 import json
 
 __commands__ = ["Forums"]
@@ -69,7 +70,9 @@
         if forums_json:
             # we loads and dumps to have pretty printed json
             forums = json.loads(forums_json)
-            json.dump(forums, content_file_obj, ensure_ascii=False, indent=4)
+            # cf. https://stackoverflow.com/a/18337754
+            f = codecs.getwriter('utf-8')(content_file_obj)
+            json.dump(forums, f, ensure_ascii=False, indent=4)
             content_file_obj.seek(0)
         self.runEditor("forums_editor_args", content_file_path, content_file_obj)