Download file with Asyncio and Aiofiles

download.py

import asyncio
import os
from typing import List

import aiofiles
import httpx

async def download(client: httpx.AsyncClient, link: str, filename: str) -> None:
    """ Download link """

    async with client.stream("GET", link) as resp:
        resp.raise_for_status()
        print(f"Downloading: {link}")
        async with aiofiles.open(filename, "wb") as f:
            async for data in resp.aiter_bytes():
                if data:
                    await f.write(data)


async def main() -> None:
    """ Download data """

    async with httpx.AsyncClient(timeout=None, http2=True) as client:
        links = []
        await asyncio.gather(*[download(client, link) for link in links])


if __name__ == "__main__":
    loop = asyncio.get_event_loop()
    loop.run_until_complete(main())

pip install httpx[http2] or poetry add h2 to add http2 support.