Bluetooth discovery fails with transmit_power_level_in_d_bm is not available on windows 18363

[LaurentTetreault]

• bleak version: 0.19.0
• Python version: 3.9
• Operating System: windows 10 version 1909 18363

Description

I try to run BleakScanner.discover with the code from the readme and it fails saying that transmit_power_level_in_d_bm property is not available. I expected to print in the terminal every bluetooth devices around my computer.

What I Did

I tested the code with bleak version 0.18.0 and it worked.

import asyncio
from bleak import BleakScanner

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

asyncio.run(main())

Traceback (most recent call last):
  File "C:\Users\tetl1201\AppData\Local\Programs\Python\Python39\lib\asyncio\events.py", line 80, in _run
    self._context.run(self._callback, *self._args)
  File "C:\Users\tetl1201\AppData\Local\Programs\Python\Python39\lib\site-packages\bleak\backends\winrt\scanner.py", line 159, in _received_handler
    if args.transmit_power_level_in_d_bm is not None:
AttributeError: property is not available in this version of Windows
Exception in callback BleakScannerWinRT._received_handler(<_bleak_winrt...0025957AACC90>, <_bleak_winrt...0025957AACA70>)
handle: <Handle BleakScannerWinRT._received_handler(<_bleak_winrt...0025957AACC90>, <_bleak_winrt...0025957AACA70>)>

Logs

2022-10-28 12:02:07,815 bleak.backends.winrt.scanner DEBUG: Received 6A:DF:59:88:3E:23: .
2022-10-28 12:02:07,816 bleak.backends.winrt.scanner DEBUG: skipping callback, waiting for scan response
2022-10-28 12:02:07,935 bleak.backends.winrt.scanner DEBUG: Received 2E:BD:06:A7:C9:E8: .

Exception in callback BleakScannerWinRT._received_handler(<_bleak_winrt...001575BE9D2D0>, <_bleak_winrt...001575BE9D430>)
handle: <Handle BleakScannerWinRT._received_handler(<_bleak_winrt...001575BE9D2D0>, <_bleak_winrt...001575BE9D430>)>
Traceback (most recent call last):
  File "C:\Users\tetl1201\AppData\Local\Programs\Python\Python39\lib\asyncio\events.py", line 80, in _run
    self._context.run(self._callback, *self._args)
  File "C:\Users\tetl1201\AppData\Local\Programs\Python\Python39\lib\site-packages\bleak\backends\winrt\scanner.py", line 159, in _received_handler
    if args.transmit_power_level_in_d_bm is not None:
AttributeError: property is not available in this version of Windows

2022-10-28 12:02:07,939 bleak.backends.winrt.scanner DEBUG: Received 79:C5:6F:B8:69:22: .

And these messages repeat for 5 seconds.