decoded sender to concat in string

chat.py

@@ -88,10 +88,10 @@ def messages_post():
         if "spam" in str(message, "UTF-8").lower():
             messages.append(Message(time, "1.3.3.7", "ip", "Nee"))
             return "OK"
-        
+
         if sender != "somebody":
-            message = "<" + sender + "> " + message
-        
+            message = "<" + sender.decode() + "> " + message
+
         messages.append(Message(time, sender, sendertype, str(message, "UTF-8")))
         url = 'http://10.0.5.42:8000/' # Set destination URL here
         post_fields = {'X-Messages': base64.b64encode(message)}