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#!/usr/bin/env python3

# -*- coding: utf-8 -*-

# Author: xurongzhong#126.com wechat:pythontesting qq:37391319

# CreateDate: 2018-1-26

# From https://pymotw.com/3/asyncio/coroutines.html

# asyncio_wait.py

import asyncio

async def phase(i):

print('in phase {}'.format(i))

await asyncio.sleep(0.1 * i)

print('done with phase {}'.format(i))

return 'phase {} result'.format(i)

async def main(num_phases):

print('starting main')

phases = [

phase(i)

for i in range(num_phases)

]

print('waiting for phases to complete')

completed, pending = await asyncio.wait(phases)

results = [t.result() for t in completed]

print('results: {!r}'.format(results))

event_loop = asyncio.get_event_loop()

try:

event_loop.run_until_complete(main(3))

finally:

event_loop.close()