concurrent coroutines demonstrated

concurrent_coroutines.py

from aiohttp import ClientSession

async def get_file(name, url):
  async with ClientSession() as session:
    async with session.get(url) as response:
      result = await response.read()
      print(name, response.status)

async def parallel_on_loop():
  await asyncio.gather(
          get_file("A", "https://httpbin.org/range/1024?duration=5"),
          get_file("B", "http://www.google.com"),
          get_file("C", "http://www.bbc.co.uk")
          )


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