[issue35481] Run Tasks cannot Concurrent

[youngchaos]

youngchaos <yangc77 at 139.com> added the comment:

#!/usr/bin/env python
# coding: utf-8

import struct, asyncio, os

async def readdev(dev):
    while True:
        buf=os.read(dev, 480)
        print([struct.unpack('llHHi', buf[i*24:(i+1)*24]) for i in range(len(buf)//24)])

mouse=os.open('/dev/input/event2', os.O_RDONLY)
kbd=os.open('/dev/input/event5', os.O_RDONLY)

async def main(mouse,kbd):
    await asyncio.gather(readdev(mouse),readdev(kbd))

asyncio.run(main(mouse,kbd))
------------
python 3.7.1
Linux 4.19.6-1-MANJARO #1 SMP PREEMPT Sat Dec 1 12:21:26 UTC 2018 x86_64 GNU/Linux

run code, output:
[(1544681359, 149693, 2, 0, -1), (1544681359, 149693, 2, 1, 1), (1544681359, 149693, 0, 0, 0)]
sdffvsdgsdgsdgsdgsdgs

mouse move output line1 format, and keyboard press output line2 format

await asyncio.gather(readdev(kbd)) and key press can output lists
howto both output lists? It is a bug?

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue35481>
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