Update app.py

app.py

@@ -444,7 +444,7 @@ def upload_text_file(content):
     data = {"content": content, "syntax": "text", "expiry_days": 1}
     headers = {"User-Agent": "Sources"}
     r = requests.post("https://dpaste.com/api/", data=data, headers=headers)
-    return r.text + ".txt"
+    return f"{str(r.text)[:-1]}.txt"
 
 
 def ask_df(df, api_key, model, ui_session_id):