Python requests download file with a tqdm progress bar

dl_requests_tqdm.py

import requests
from tqdm import tqdm


def download(url: str, fname: str, chunk_size=1024):
    resp = requests.get(url, stream=True)
    total = int(resp.headers.get('content-length', 0))
    with open(fname, 'wb') as file, tqdm(
        desc=fname,
        total=total,
        unit='iB',
        unit_scale=True,
        unit_divisor=1024,
    ) as bar:
        for data in resp.iter_content(chunk_size=chunk_size):
            size = file.write(data)
            bar.update(size)

This is the best solution for downloading large files.

Getting no output from this. Has something changed in tqdm since this was written? It's pretty much exactly what I need, and is downloading fine, but no visual updates. I output the total to the console, so I know it got that far. Updated to the latest tqdm and requests as well.

Getting no output from this. Has something changed in tqdm since this was written? It's pretty much exactly what I need, and is downloading fine, but no visual updates. I output the total to the console, so I know it got that far. Updated to the latest tqdm and requests as well.

If there is no content-length in the response, then no output displayed.

Thanks very much. It is a great solution.

Thanks for helping me.

Thanks !

see my fork for additional options:

• try auto detect file name if left empty
• option to overwrite if file already existed
• chunk_size in MiB

total = int(resp.headers.get('content-length', 0))

V

total = int(resp.headers.get('content-length', 0)) or float('inf')

to support the case when the content length is not specified