In Python 3.8+, when we run the http.server in a PC that support IPv6, it will bind IPv6 socket normally. On Linux or some other platforms, it also bind IPv4, that's pretty good, but on Windows, it doesn't work and "--bind 0.0.0.0" have to be provided to make it works in IPv4 environment.
In another case, once someone only want the http.server provide service in IPv6 environment, but linux will still bind IPv4 socket automatically.

Could we add a argument such as "--ipv6-only" for http.server and open the support of Dual-Stack socket by default?