[Python-Dev] New Windows installer for Python 3.5

Ethan Furman ethan at stoneleaf.us
Mon Jan 5 19:04:37 CET 2015

On 01/04/2015 02:56 PM, Steve Dower wrote:

> ChrisA wrote:
>> You talk of installing by default into Program Files, and having a
>> separate per-user installation mode. How do these two installation
>> targets interact? Suppose someone installs 3.5 globally, then installs
>> 3.6 for self only? Or installs 3.5.1 for self only? I would normally
>> expect a per-user installation to trump a global one, but this could
>> make for a lovely dep-hell on a system that's used by one person, who
>> then isn't sure what was installed as admin and what wasn't.
> Yeah, it gets a little messy, especially if you keep adding all the
> Python versions to PATH (Windows will always put per-user PATH entries
> at the end). The py.exe launcher handles this best, and the system
> version will always be found first.

py.exe should *not* follow this behavior.  User installs should be searched first, then system installs -- otherwise,
what's the point in having a user-install?  Filling up the gobs of disk-space we now have available?


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