If you don't have the latest asyncio version, change `ensure_future` to `async`. > asyncio.async(display_date(1, loop)) See this https://github.com/python/asy

If you don't have the latest asyncio version, change `ensure_future` to `async`. > asyncio.async(display_date(1, loop)) See this https://github.com/python/asyncio/pull/242 https://github.com/python/asyncio/pull/242 The author is using the latest release of asyncio, will be good to mention that.