Weewx not stopping immediately when using HTTP request or UDP socket

[flor...@pre-vost.fr]

Hi,

When I use HTTP request with lib : requests or create an UDP socket, Weewx attempt serveral minutes before stop it when the user want to restart or stop weewx.

I don't know why it do this.

My driver : https://github.com/Drealine/WLLDriver/blob/master/bin/user/WLLDriver.py