download_no_compression.py

import asyncio

import aiohttp


async def my_download():
    with open('/tmp/somefileintmp', 'wb') as the_file:
        async with aiohttp.ClientSession(auto_decompress=False) as session:
            async with session.get('https://repos.fedorapeople.org/pulp/pulp/fixtures/python-pypi/packages/shelf_reader-0.1-py2-none-any.whl') as resp:
                while True:
                    chunk = await resp.content.read(1024 * 1024)
                    if not chunk:
                        break  # the download is done
                    the_file.write(chunk)

loop = asyncio.get_event_loop()
loop.run_until_complete(my_download())
loop.close()