replace a string in a jupyter notebook get rid of any passwords

ReplacePasswords.py

import os
import re

search_dir = '/home/jack/Desktop/HDD500/notebooks'  # Replace this with the directory where you want to search for Jupyter notebooks
search_string = 'password'  # Replace this with the string you want to search for
replace_string = 'XXXnopassword'  # Replace this with the string you want to replace the search string with

for file in os.listdir(search_dir):
    if file.endswith('.ipynb'):
        with open(os.path.join(search_dir, file), 'r', encoding='utf-8') as nb_file:
            nb_content = nb_file.read()
            nb_content = re.sub(search_string, replace_string, nb_content)
        with open(os.path.join(search_dir, file), 'w', encoding='utf-8') as nb_file:
            nb_file.write(nb_content)

print(f"Done searching and replacing '{search_string}' with '{replace_string}'.")