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Script to download files in a async way, using Python asyncio
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| import os | |
| import asyncio | |
| import aiohttp # pip install aiohttp | |
| import aiofile # pip install aiofile | |
| REPORTS_FOLDER = "reports" | |
| FILES_PATH = os.path.join(REPORTS_FOLDER, "files") | |
| def download_files_from_report(urls): | |
| os.makedirs(FILES_PATH, exist_ok=True) | |
| sema = asyncio.BoundedSemaphore(5) | |
| async def fetch_file(session, url): | |
| fname = url.split("/")[-1] | |
| async with sema: | |
| async with session.get(url) as resp: | |
| assert resp.status == 200 | |
| data = await resp.read() | |
| async with aiofile.async_open( | |
| os.path.join(FILES_PATH, fname), "wb" | |
| ) as outfile: | |
| await outfile.write(data) | |
| async def main(): | |
| async with aiohttp.ClientSession() as session: | |
| tasks = [fetch_file(session, url) for url in urls] | |
| await asyncio.gather(*tasks) | |
| loop = asyncio.get_event_loop() | |
| loop.run_until_complete(main()) | |
| loop.close() |
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