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To: python-list@python.org
From: Terry Reedy <tjreedy@udel.edu>
Subject: Re: upgrade python
Date: Tue, 23 Aug 2011 19:18:50 -0400
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:12122

On 8/23/2011 6:09 PM, Ronald Reynolds wrote:
> What is recommended for upgrading python for windows? Do I just install
> the new version

I put each version in its own Pythonxy directory, as the installer 
wants. x.y.z bug fix releases replace the previous x.y release.

> Do I edit my system path?

However, I put all versions in my own 'Programs' directory (not at 
top-level, not in Program Files. On my old machine, I added that one 
directory to PATH. Then I copied Pythonxy/python to pyxy in that 
directory. I will do the same on my new machine when I have need. But I 
mostly execute from an IDLE editor window, so PATH and command prompts 
are mostly irrelevant for me.

> Should I uninstall the old version.

If and only if you are sure you have no further use for it.


-- 
Terry Jan Reedy