something with semaphor asyncio requests

semaphor_asyncio.py

urls = open_file(0, 500) #array of urls


async def fetch_url(i, url, semaphore):
    async with semaphore:
        async with httpx.AsyncClient() as client:
            reply = await client.get(url)
            print(f'got {url}')
            return i, reply


async def main():
    semaphore = asyncio.Semaphore(3)
    tasks = [fetch_url(i, url, semaphore) for i, url in enumerate(urls)]
    responses = await asyncio.gather(*tasks)
    for i, r in responses:
        print(i, r.status)


if __name__ == "__main__":
    asyncio.run(main())