Master Python File Downloads: Requests, Wget, urllib, Boto3 & Asyncio

1. Using requests

You can download a file from a URL with requests.get(url) and write the response content to a local file.

2. Using wget

Install the wget module via pip and call wget.download(url, path) to fetch files such as the Python logo.

3. Downloading redirected files

Set allow_redirects=True in requests.get to follow HTTP redirects and save the final target file.

4. Chunked download of large files

Enable streaming with requests.get(url, stream=True), write data in 1024‑byte chunks, and optionally display a progress bar using the clint module.

5. Parallel / batch download

Import ThreadPool (along with os and time) to run multiple download threads, defining a helper function that writes each response to a file.

6. Using urllib

Download a webpage with the standard library function urllib.request.urlretrieve(url, filename), specifying the target file name.

7. Download via proxy

Create a ProxyHandler, build an opener with urllib.request.build_opener, and fetch the page through the proxy.

8. Using urllib3

Install urllib3, create a PoolManager, and download content, optionally using shutil to write the response to a file.

9. Downloading from Amazon S3 with boto3

Install boto3, configure AWS credentials, create an S3 resource via boto3.resource('s3'), and call download_file(bucket, key, filename) to retrieve objects.

10. Asynchronous download with asyncio

Define async functions using async def and await, build a task queue of URLs, and run the event loop with asyncio.get_event_loop() and run_until_complete to download files concurrently.