Python: Calculate the size of a directory and its sub-directories

#!/usr/bin/env python
# Author: James Cherti
# License: MIT
# URL: https://www.jamescherti.com/python-calculate-the-size-of-a-directory-and-its-sub-directories/
"""Calculate the size of a directory and its sub-directories."""

import os
from pathlib import Path
from typing import Union

def get_size(path: Union[Path, str], include_dirs_size=True) -> int:
    """Return the size of a file or a directory in bytes."""
    path = Path(path)
    size = 0

    if path.is_dir():
        list_paths = path.glob("**/*")
    elif path.is_file():
        list_paths = [path]  # type: ignore
    else:
        list_paths = []  # type: ignore

    for cur_path in list_paths:
        if not include_dirs_size and cur_path.is_dir():
            continue

        if not cur_path.is_symlink():
            size += cur_path.stat().st_size

    return sizeCode language: Python (python)