app.py

import streamlit as st
import pandas as pd

data = pd.read_csv("test.csv")
for line in data:
  st.write(line)
  
title = st.text_input('Movie title', 'Life of Brian')
if st.button('Submit'):
  new_row  = {'Sentences': title}
  data = data.append(new_row, ignore_index=True)
  st.write(data)
  data.to_csv('./test.csv', index= False)