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

[eryk sun]

On Thu, Dec 24, 2015 at 4:33 PM, Terry Reedy <tjreedy at udel.edu> wrote:
>> somehow the new py3.5 has been added to the end, not the beginning.
>> guess this path is what you meant by "my profile".
>
> Bizarre.  I just installed 3.5.1 on top of 3.5.1rc1, on Win10 with the 64bit
> .exe installer, and the 3.5 dirs are at the front, where I expect them.  Are
> you using a different version of installer? (The web version?)

If you install just for the current user, the installer modifies only
the user's "HKCU\Environment" key in the registry. When you log on, or
when Explorer reloads its environment, the value of PATH is formed by
concatenating the user value to the end of the system value.