Create .placeholder files in any empty leaf directories

placeholders.py

import os
import sys
import click


@click.command()
@click.argument("root_path")
def build(root_path):
    root_path = os.path.abspath(root_path)
    if not os.path.isdir(root_path):
        print('Path does not exist: {}'.format(root_path))
        sys.exit(1)

    for dirpath, dirnames, filenames in os.walk(root_path):
        if not dirnames and not filenames:
            print(dirpath)
            create_placeholder(dirpath)


def create_placeholder(dirpath):
    """
    Create a .placeholder file in the given directory
    """
    filepath = os.path.join(dirpath, '.placeholder')
    if not os.path.isfile(filepath):
        with open(filepath, 'w'):
            pass
        print('Created {}'.format(filepath))


if __name__ == '__main__':
    build()