added try-catch, removed push message, renamed file

.gitignore

@@ -1,3 +1,4 @@
 srv_secrets.py
 venv/
-chroma_db/
+chroma_db/
+__pycache__/

linebot_app.py

@@ -111,11 +111,9 @@ def message_text(event):
     
     with ApiClient(configuration) as api_client:
         line_bot_api = MessagingApi(api_client)
-        line_bot_api.push_message_with_http_info(
-            PushMessageRequest(
-                to=event.source.user_id,
-                messages=[TextMessage(text=str(user_sessions[event.source.user_id]({"question": event.message.text})['answer']))]
-            ))
+        with str(user_sessions[event.source.user_id]({"question": event.message.text})['answer']) as answer:
+            line_bot_api.push_message_with_http_info(
+                PushMessageRequest(to=event.source.user_id,messages=[TextMessage(text=answer)]))
 
 # main is here
 if __name__ == "__main__":