Failure with asyncio

[RobinFrcd]

Running multiple progress in different asycio tasks fails:

import asyncio
from alive_progress import alive_it


async def progress1():
    for i in alive_it(range(10), title="p1"):
        print(f"p1 {i}")
        await asyncio.sleep(1)


async def progress2():
    for i in alive_it(range(25), title="p2"):
        print(f"p2 {i}")
        await asyncio.sleep(0.5)


def main():
    loop = asyncio.get_event_loop()
    loop.create_task(progress1())
    loop.create_task(progress2())
    loop.run_forever()


if __name__ == "__main__":
    main()

on 0: p1 0
on 0: Task exception was never retrieved
      future: <Task finished name='Task-2' coro=<progress2() done, defined at maintest.py:11> exception=TypeError("unhashable type: 'types.SimpleNamespace'")>
      Traceback (most recent call last):
        File "maintest.py", line 13, in progress2
          print(f"p2 {i}")
        File ".../python3.9/site-packages/alive_progress/core/hook_manager.py", line 35, in write
          buffer = buffers[stream]
      TypeError: unhashable type: 'types.SimpleNamespace'
on 1: p1 1
on 2: p1 2
on 3: p1 3
on 4: p1 4
on 5: p1 5
on 6: p1 6
on 7: p1 7
on 8: p1 8
on 9: p1 9
p1 |████████████████████████████████████████| 10/10 [100%] in 10.1s (0.99/s)

[rsalmei]

Hello.
Yes, it is a known fact that alive-progress does not support multiple concurrent instances.
It could be implemented someday, but it is very hard. See #20 and #75 and #42 and #124.

Edit: You could in this case create one on the main thread, and monitor the flow of completed tasks. 👍

Closing this one, to keep this request on the older ones.