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From: Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject: Re: Install python 2 and 3 in the "wrong" order
Date: Sun, 16 Feb 2014 12:05:50 -0500
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On Sun, 16 Feb 2014 09:13:14 +0100, Nagy László Zsolt
<gandalf@shopzeus.com> declaimed the following:

>
>> 	I should emphasize that this is with the /same/ x.y version...
>> Installing 3.3 when the previous was 3.2 won't overlay.
>>
>> 	Though I don't see anything in the ActiveState builds (which are all
>> I've ever used) to handle the #! type selection of the desired version.
>> Just got done updating my 2.7, replacing 3.2 with 3.3, and then having to
>> edit my path to make 2.7 primary... No "py.exe"
>I need both 2.7 and 3.3. And apparently, py.exe does not work the way it 
>should be.
>
>I would happily reinstall 3.3 to solve the problem, but before I do that 
>I would like to check all other related settings. So that after I 
>reinstall 3.3, I will exactly know what was happening.
>
>It might be a good idea to change the installer of the 2.x series to 
>detect if 3.x is already installed, and handle assignments of py and pyw 
>files gracefully.

	The installers I ran have an option that theoretically allows one to
control if it sets itself up as the "system" version (modifying
ftype/assoc, and PATH). Of course, I confuse matters even more by having
installed both 32-bit and 64-bit versions of both 2.7 and 3.3 <G>

	Though that paranoia may be fading; I think all "my" prefered add-ons
have 2.7-64bit variants (or are truly architecture free).

	Now if R v3.x ever finishes downloading the "contrib" files (I'm into
the sh* files after about 18 hours). Problem with jumping major version is
that the contrib files tend to be all new too.
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
    wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/