rename-files.py

import os
import argparse


def rename_files(directory, new_prefix, start_from):
    if not os.path.isdir(directory):
        print(f"Error: '{directory}' is not a valid directory.")
        return

    # Retrieve and sort the list of files for consistent renaming order.
    files = sorted(os.listdir(directory))
    index = start_from

    for filename in files:
        old_file_path = os.path.join(directory, filename)
        # Proceed only if it's a file (skip subdirectories)
        if os.path.isfile(old_file_path):
            # Preserve the original file extension
            _, extension = os.path.splitext(filename)
            new_filename = f"{new_prefix}-{index}{extension}"
            new_file_path = os.path.join(directory, new_filename)

            try:
                os.rename(old_file_path, new_file_path)
                print(f"Renamed '{filename}' to '{new_filename}'")
            except Exception as e:
                print(f"Error renaming '{filename}': {e}")

            index += 1


if __name__ == '__main__':

    # rename_files(
    # "/Users/air/Documents/repos/python-rename-files/files/images/original/Balustrades", "balustrades", 2)
    rename_files(
        "/Users/air/Documents/repos/python-rename-files/files/images/original/Construction", "construction", 10)
    # rename_files(
    #     "/Users/air/Documents/repos/python-rename-files/files/images/test/Trilldoor Burglar", "trilldoor burglar", 1)

# "/Users/air/Documents/repos/python-rename-files/files/images/test/Balustrades"
# "/Users/air/Documents/repos/python-rename-files/files/images/test/Construction"
# "/Users/air/Documents/repos/python-rename-files/files/images/test/Trilldoor Burglar"

# python3 main.py "/Users/air/Documents/repos/python-rename-files/files/images/test/Balustrades", "balustrades", 21
# python3 main.py "/Users/air/Documents/repos/python-rename-files/files/images/test/Construction", "construction", 3
# python3 main.py "/Users/air/Documents/repos/python-rename-files/files/images/test/Trilldoor Burglar", "trilldoor burglar", 1