Actually future is low level abstraction :)
On Tue, Aug 28, 2018 at 2:31 PM Dima Tisnek <dim...@gmail.com> wrote:
> What Bret said, here (perhaps) more concise:
>
> async def main():
> f1 = ensure_future(say("two", 2))
> f2 = ensure_future(say("one", 1))
> # at this point both are running
> await f1
> await f2
>
> Note that current event loop is automatic since Python 3.6; Futures are
> higher level abstraction, but I think it's better to start with futures :)
>
> On Mon, 27 Aug 2018 at 5:47 PM, saurabh singh <saurabh3...@gmail.com>
> wrote:
>
>> my question is 1st one is concurrent but 2nd one is not, how and please
>> correct me, what i miss and what should i know more
>> thank you
>>
>> import asyncio
>>
>> # 1st code
>> async def say(what, when):
>> await asyncio.sleep(when)
>> print(what)
>>
>> loop = asyncio.get_event_loop()
>>
>> loop.create_task(say('first hello', 2))
>> loop.create_task(say('second hello', 1))
>>
>> loop.run_forever()
>> loop.close()
>>
>> '''
>> result
>> >>> second hello
>> >>> first hello
>> '''
>>
>> # 2nd code
>> async def say(what, when):
>> await asyncio.sleep(when)
>> print(what)
>>
>> async def main(loop):
>> yield from loop.create_task(say('first hello', 2))
>> yield from loop.create_task(say('second hello', 1))
>> print('close')
>>
>> loop = asyncio.get_event_loop()
>> loop.run_until_complete(main(loop))
>> loop.close()
>>
>> '''
>> result
>> >>> first hello
>> >>> second hello
>> '''
>>
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--
Thanks,
Andrew Svetlov
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