Need to statically link bleak-winrt.

[dlech]

PS C:\Users\P\Desktop\tool-production\firmware-loader> pip.exe show bleak
Name: bleak
Version: 0.14.1
Summary: Bluetooth Low Energy platform Agnostic Klient
Home-page: https://github.com/hbldh/bleak
Author: Henrik Blidh
Author-email: henrik.blidh@nedomkull.com
License: MIT
Location: c:\users\p\appdata\local\programs\python\python38\lib\site-packages
Requires: bleak-winrt
Required-by:
PS C:\Users\P\Desktop\tool-production\firmware-loader> pip.exe show winrt
Name: winrt
Version: 1.0.21033.1
Summary: Access Windows Runtime APIs from Python
Home-page: https://github.com/Microsoft/xlang/tree/master/src/package/pywinrt/projection
Author: Microsoft Corporation
Author-email: None
License: MIT
Location: c:\users\p\appdata\local\programs\python\python38\lib\site-packages
Requires:
Required-by:

PS C:\Users\P\Desktop\tool-production\firmware-loader> python.exe .\main_v2.py
Traceback (most recent call last):
  File ".\main_v2.py", line 13, in <module>
    from source.CLIToolHandler.bleHandler import downloadUploadConfigFile, LKey
  File "C:\Users\P\Desktop\tool-production\firmware-loader\source\CLIToolHandler\bleHandler.py", line 3, in <module>
    from bleak import BleakClient
  File "C:\Users\P\AppData\Local\Programs\Python\Python38\lib\site-packages\bleak\__init__.py", line 78, in <module>
    from bleak.backends.winrt.scanner import (
  File "C:\Users\P\AppData\Local\Programs\Python\Python38\lib\site-packages\bleak\backends\winrt\scanner.py", line 7, in <module>
    from bleak_winrt.windows.devices.bluetooth.advertisement import (
  File "C:\Users\P\AppData\Local\Programs\Python\Python38\lib\site-packages\bleak_winrt\__init__.py", line 3, in <module>
    from . import _winrt
ImportError: DLL load failed while importing _winrt: The specified module could not be found.

I upgraded the bleak library from 0.12.1 to 0.14.1 and while it worked before - it connected - now I get this error immediately after running the script (python3.8).

On another computer I update lib from 0.12.1 to 0.14.1 and run the same script and I do not get such error - the library versions are the same (python 3.7).

I did not go to test the GATT services error - I stopped at this error

Originally posted by @pawelm87 in #740 (comment)

[dlech]

This was solved by installing the Microsoft Visual C++ 2022 redistributable. However we should not require users to do this.

I think we can statically link the _winrt module by using the /MT compiler option.

[hbldh]

If you are able to include this in the bleak-winrt package, then we save the users from a potentially disheartening situation. I am all for it; it is a good find.

I was continually surprised that the pythonnet backend never needed any such package to be installed, but now it seems that we have come to the end of the road. If you are able to wrap in a dependency you control, then it is handled as good as it can be in my book.