fix date format

app.py

@@ -2,7 +2,6 @@ import os
 import requests
 from datetime import datetime
 
-from bs4 import BeautifulSoup
 
 import gradio as gr
 from gradio import components
@@ -14,7 +13,7 @@ from langchain.docstore.document import Document
 from openai.error import AuthenticationError
 
 def comment_datetime(comment_json):
-    dt = datetime.fromisoformat(comment_json["created_at"])
+    dt = datetime.fromisoformat(comment_json["created_at"][:-1])
     return comment_json["user"]["login"] + " commented on " + dt.strftime("%b %d, %Y") + ":"
 
 str_format = """