Checks that the target path is not empty

def check_target(target_path):
    """
    Checks that the target path is not empty
    """

    if not path.exists(target_path):
        return

    with scandir(target_path) as d:
        for entry in d:
            if not entry.name.startswith('.'):
                fail(f'Target directory "{target_path}" is not empty')