Conditional execution with download_button

Hi Community,

I am looking forward to achieve a conditional execution only if the data is downloaded. I am moving data from folder A to folder B (OutputToBeZipped), then archiving the folder B in a location C (ZippedOutputs), and downloading the zipped folder from C. I want to delete the folder B with shutil.rmtree(path), but this should only be executed once the download_button is clicked. Here, if statement is not working with download_button. As mentioned in an earlier post, I have been unsuccessful to download with st.button previously. My effort so far:

import streamlit as st
import shutil
import os
import zipfile

if st.button("Initiate download"):

    folder_to_be_zipped = "OutputToBeZipped"
    zipped_file_name = r"ZippedOutputs\" 

    # moving the output data to the folder to be zipped
    src = r"C:\Users\....\source"
    dest = "C:\\Users\\....\\OutputToBeZipped"
    shutil.copytree(src, dest, dirs_exist_ok=True)

    # creating zip of the folder
    with zipfile.ZipFile(zipped_file_name, "w", zipfile.ZIP_DEFLATED) as newzip:
        for dirpath, dirnames, files in os.walk(folder_to_be_zipped):
            for file in files:
                newzip.write(os.path.join(dirpath, file))

    # byte code of the zip file
    with open(zipped_file_name, "rb") as zip_file:
        ZIPbyte =
    # download the byte code as a zipped file
    st.download_button(label="Download Output",

    # Delete the folder OutputToBeZipped
    path = r"C:\Users\.....\OutputToBeZipped"

Any suggestion is appreciated. Please help