Bleak not working Issue on MacOS 12.0.1 Monterey

[Ironman-007]

• bleak version: 0.11.0
• Python version: 3.9.7
• Operating System: MacOS 12.0.1 Monterey
• BlueZ version (bluetoothctl -v) in case of Linux: n/a

Description

Python3 program with Bleak can not discover any devices.

I'm trying to develop a GUI using Python (with Bleak lib) on my mac to talk to an nRF52840 board through BLE.
But the program can not find any BLE devices.

What I Did

I firstly test this demo from Bleak repo:

import asyncio
import CoreBluetooth

from bleak import discover

async def main():
    print("main()")
    devices = await discover()
    for d in devices:
        print(d)

asyncio.run(main())

There is no output.
I reinstalled the python3 (by using brew), but there is still no output.

When I tried this demo on my PC, it's working, and can find all Bluetooth devices around.

Anyone can help me with this? Thanks in advance! :)

[dlech]

Sorry, we haven't figured out a solution to it yet. Please report the issue in the Apple Feedback Assistant and subscribe to issue #635 for updates. Closing this one as a duplicate.