Basic function for downloading file over HTTP

download.py

from pathlib import Path
from requests import get
from requests.exceptions import HTTPError

def download_file(url, chunk_size=1024):
    filename = Path(url).name

    if not Path(filename).exists():
        try:
            with get(url, stream=True) as req:
                req.raise_for_status()

                with open(filename, mode="wb") as f:
                    for chunk in req.iter_content(chunk_size=chunk_size):
                        if chunk:
                            f.write(chunk)
        except HTTPError as ex:
            print(ex)
            return None
    
    return filename