Coroutines example

import asyncio
import datetime
import json

loop = asyncio.get_event_loop()
coro_sched = []

async def print_hello():
    for i in range(10):
        coro_sched.append('hello')
        print("Hello")
        await asyncio.sleep(0.2)


async def print_time():
    for i in range(10):
        coro_sched.append('time')
        print(datetime.datetime.now())
        await asyncio.sleep(0.1)


async def print_random_jokes():
    for i in range(10):
        coro_sched.append('joke')
        reader, writer = await asyncio.open_connection('api.icndb.com', 80)
        writer.write(b'GET /jokes/random HTTP/1.1\r\nHost: api.icndb.com\r\nConnection: Close\r\n\r\n')
        response = await reader.read()
        json_str = response.decode('utf-8').split('\r\n')[-4]
        print(json.loads(json_str)['value']['joke'])
        await asyncio.sleep(0.3)



async def print_stuff():
    j = print_random_jokes()
    h = print_hello()
    t = print_time()
    j_task = loop.create_task(j) # Start printing jokes
    await t # Start printing time and wait until it's finished
    await h # Start printing hello and wait until it's finished
    await j_task # Wait until printing jokes finished
    print(coro_sched)


loop.run_until_complete(print_stuff())