replace_increment

import os
import re

def get_list_dir(path, depth=False, type='all', inc=True, exclude=[], max=95):
    list = []
    if not path or not os.path.isdir(path):
        return False

    base_path = os.getcwd()
    if base_path != path:
        try:
            os.chdir(path)
        except:
            return False

    required_path = os.getcwd()
    if not required_path:
        return False

    try:
        for entry in os.scandir(required_path):
            if entry.name not in exclude:
                if type == 'all' or (type == 'dir' and entry.is_dir()) or (type == 'file' and entry.is_file()):
                    list.append(os.path.join(required_path, entry.name) if inc else entry.name)

                if entry.is_dir() and depth:
                    if max < 1:
                        list.append('Too many subdirectories, indexing interrupted.')
                        break
                    else:
                        x = get_list_dir(entry.path, depth, type, inc, exclude, max-1)
                        list.extend(x if x else [])
    finally:
        os.chdir(base_path)

    return list

# Main script
to_be_replaced = 'wxyz'  # exactly what it wants replaced
nr_start = 1  # from which no start counting
path_files = os.getcwd()

excluded_files = [
    '.htaccess', 'robots.txt', '.ftpquota', 'dezabonare.html', 'despre.html',
    'evenimente.html', 'training-si-consultanta.html', 'contact.html', 'despre.html',
    'newsletter.html', 'newsletter_confirm.html', 'feedback.html', 'feedback_thankyou.html',
    'parteneri.html', 'directory.html', 'comanda.html', 'termeni-si-conditii.html',
    'y_key_e479323ce281e459.html', 'yandex_46f3adbe1b25a4ca.html', 'test4.html',
    'search.html', 'inlocuire.php'
]

file_list = get_list_dir(path_files, False, 'file', True, excluded_files)

if file_list and isinstance(file_list, list):
    file_list.sort()
    for file in file_list:
        with open(file, 'r', encoding='utf-8') as f:
            original_content = f.read()

        if to_be_replaced in original_content:
            content_modified = original_content.replace(to_be_replaced, str(nr_start))
            content_modified = re.sub(r'\n{4,}', '\n\n', content_modified)

            try:
                with open(file, 'w', encoding='utf-8') as f:
                    f.write(content_modified)
            except:
                print(f'Error: Unable to modify the file {file}. I stayed at number {nr_start}')
                break

            nr_start += 1

    print(f'They were checked {len(file_list)} files and the last number is {nr_start - 1}')
else:
    print('Files Not found, check the file path')