[issue16328] win_add2path.py sets wrong user path

[Tim Golden]

I assume that "$PYTHONPATH" is actually referring to sys.exec_prefix
(and not the PYTHONPATH env var which has nothing to do with this).

In any case c:\python27\scripts is still the place for scripts. There is
a c:\python27\tools\scripts (which you're welcome to add to your %PATH%
if you find the scripts useful) but that's not the place where
user-installed packages are expected to install their executable helper
scripts.

Without looking closely, I think I agree about default the user path to
%PATH%. I'll add Christian Heimes to this call who, I think, wrote the
original code.