unable to open IDLE for Python3.50rc1 on windows10 64bit AMD

[eryk sun]

 On Thu, Dec 24, 2015 at 8:52 AM, Nicky Mac <nmcelwaine at gmail.com> wrote:
> seems the user profile PATH is a registry entry, and was not updated when I
> deinstalled Python2.7
> still haven't  figured out how to change it - I will NOT attempy a regedit.

I don't use the option to add the installation and Scripts directories
to PATH. It's a mess when installing multiple interpreters. I use the
py launcher [1] and virtual environments [2], and manually add .PY to
PATHEXT.

[1]: https://docs.python.org/3/using/windows.html#python-launcher-for-windows
[2]: https://docs.python.org/3/library/venv.html