Pretend filesystem in Python

main.py

class File:
    def __init__(self, name, contents=""):
        self.name = name
        self.content = contents


class Directory:
    def __init__(self, name, items):
        self.name = name
        self.items = items

    def print_items(self):
        print(self.name)
        Directory.__print_items_internal(self)

    @staticmethod
    def __print_items_internal(directory, indentation="|    "):
        for item in directory.items:
            print(f"{indentation}{item.name}")

            if isinstance(item, Directory):
                Directory.__print_items_internal(item, indentation + "|    ")


def main():
    Directory(
        "/",
        [
            Directory(
                "animals",
                [
                    File("bird.txt"),
                    File("cat.txt"),
                    File("dog.txt"),
                    Directory(
                        "people",
                        [
                            File("bob.txt"),
                            File("joe.txt"),
                            File("sam.txt"),
                            File("seth.txt"),
                        ],
                    ),
                    File("zebra.txt"),
                ],
            ),
            Directory(
                "misc",
                [
                    Directory(
                        "a",
                        [
                            Directory(
                                "b",
                                [
                                    Directory(
                                        "c",
                                        [
                                            Directory(
                                                "d",
                                                [
                                                    Directory(
                                                        "e",
                                                        [
                                                            File("hidden.txt"),
                                                        ],
                                                    )
                                                ],
                                            )
                                        ],
                                    )
                                ],
                            )
                        ],
                    )
                ],
            ),
        ],
    ).print_items()


if __name__ == "__main__":
    main()