Why does Python never add itself to the Windows path?

[vbgunz]

Ben Sizer wrote:
> I've installed several different versions of Python across several
> different versions of MS Windows, and not a single time was the Python
> directory or the Scripts subdirectory added to the PATH environment
> variable. Every time, I've had to go through and add this by hand, to
> have something resembling a usable Python installation. No such
> problems on Linux, whether it be Mandrake/Mandriva, Fedora Core, or
> Kubuntu. So why is the Windows install half-crippled by default? I just
> rediscovered this today when trying to run one of the Turbogears
> scripts, but this has puzzled me for years now.
> 
> -- 
> Ben Sizer

excellent question