asynread.py

import asyncio
from urllib.request import urlopen

async def produce_lines(filename):
    try:
        with open(filename, 'r') as file:
            for line in file:
                yield line.rstrip('\n')
                await asyncio.sleep(1)

    except FileNotFoundError:
        with open("poe.txt", 'w', encoding='utf8') as file:
            file.write(
                (urlopen("http://www.gutenberg.org/dirs/2/1/4/2147/2147-8.txt")
                 .read()
                 .decode("iso8859")))
            print("Hi, I've downloaded the The Works of Edgar Allan Poe (Volume 1) for you.\nPlease, re-run this program, shall you..?")

async def print_lines(filename):
    async for line in produce_lines(filename):
        print(line)


def main():
    loop = asyncio.get_event_loop()
    loop.run_until_complete(print_lines("poe.txt"))

main()