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<H1>[Mageia-dev] python-virtualenv: package default settings question</H1>
<B>Marja van Waes</B>
<A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20python-virtualenv%3A%20package%20default%20settings%0A%09question&In-Reply-To=%3C4F448C3C.2060202%40xs4all.nl%3E"
TITLE="[Mageia-dev] python-virtualenv: package default settings question">marja11 at xs4all.nl
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<I>Wed Feb 22 07:33:32 CET 2012</I>
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<PRE>On 21/02/12 16:58, Lev Givon wrote:
><i> Received from Marja van Waes on Tue, Feb 21, 2012 at 04:42:20AM EST:
</I>>><i> On 20/02/12 20:15, Lev Givon wrote:
</I>>>><i> See <A HREF="https://bugs.mageia.org/show_bug.cgi?id=3358#c3">https://bugs.mageia.org/show_bug.cgi?id=3358#c3</A>
</I>>>><i> Anyone care to comment?
</I>>>><i>
</I>>>><i> L.G.
</I>>><i> To make replying easier, here is the question from the above link:
</I>>><i>
</I>>>><i> By default, virtualenv creates virtual environments using setuptools rather
</I>>>><i> than distribute. This causes virtualenv to complain if PYTHONDONTWRITEBYTECODE
</I>>>><i> is set (which is the default in Mageia):
</I>>>><i> The PYTHONDONTWRITEBYTECODE environment variable is not compatible with
</I>>>><i> setuptools. Either use --distribute or unset PYTHONDONTWRITEBYTECODE.
</I>>>><i> Do we effectively want to require users to explicitly set the variable in order
</I>>>><i> to use virtualenv with its default settings? (If we do, I can add an
</I>>>><i> installation message to the package to warn users to unset the variable
</I>>>><i> themselves.)
</I>>><i>
</I>>><i> To me current behaviour as described above sounds strange, even
</I>>><i> irritating, but I'm not a packager and I don't even use the package,
</I>>><i> so I don't know enough.
</I>>><i>
</I>>><i> @ Lev
</I>>><i> I understand in Mandriva virtualenv the default settings can be used
</I>>><i> without having to unset a variable, and that that doesn't cause
</I>>><i> other problems. Is that correct?
</I>><i> The Mandriva package uses the same approach as the one in Mageia,
</I>><i> i.e., PYTHONDONTWRITEBYTECODE is unset within
</I>><i> /usr/bin/virtualenv so that it will run successfully without requiring
</I>><i> that the user explicitly unset the variable or run the script with a
</I>><i> specific flag.
</I>><i>
</I>><i> Given that the variable is only set when virtualenv is run to create a
</I>><i> virtual environment and does not affect the variable's setting in a
</I>><i> user's session, I'm inclined to leave the package as-is.
</I>><i>
</I>Sounds indeed like there is no urgent reason for a change. Besides,
python-virtualenv users who run both Mageia and Mandriva, or switch
between them, will probably be glad the package behaves the same in both
distro's :)
It's a pity no python-virtualenv users seem interested in this
discussion. There is a (small?) chance they missed it because the
subject line of the first message in the thread didn't mention the
package name, though.
Regards,
Marja
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