Any builtin function that can dial up ISP and/or log off?

[User]

I am looking for a function that can dial up an ISP, connect and/or
log off through a Python script running under windows.  I looked in
socket, but didn't find anything that looks promising.  Any
suggestions?  If it is just an executable file belonging to windows
that I need to run, just tell me what the file is and I'll write a
script to run it.  Thanks.