Download files using python

download.py

from typing import IO

import requests
from requests.exceptions import RequestException
from tqdm import tqdm


def download_file(url: str, tmp_file: IO) -> None:
    try:
        r = requests.get(url)
        r.raise_for_status()
        content_length = r.headers.get("Content-Length")
        total = int(content_length) if content_length is not None else None

        with tqdm(total=total, desc="downloading") as pbar:
            with tmp_file as fptr:
                fptr.write(r.content)
                pbar.update(len(r.content))

    except RequestException as err:
        raise SystemExit(err)