Update app.py

app.py

@@ -87,6 +87,7 @@ key = st.text_input("Enter key", key="key")
 if st.button("Submit"):
     with tempfile.TemporaryDirectory() as temp_dir:
         download_files_from_s3(bucket_name, temp_dir, [key])
+        file_name = os.path.join(temp_dir, key)
         if check_pdf(os.path.join(temp_dir, file_name)):
             st.success("File downloaded successfully")
         else: