Update app.py

app.py

@@ -235,7 +235,7 @@ def generate_and_log_tokens(user_request, model, generator):
             log(user_request, response_tokens.decode("utf-8", errors="ignore"))
             response_tokens = bytearray()
             break
-        response_tokens.append(token)
+        response_tokens.extend(token)
         yield token
             
 @app.route('/', methods=['POST'])