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<H1>[Mageia-dev] Python Packaging Policy</H1>
<B>Michael scherer</B>
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TITLE="[Mageia-dev] Python Packaging Policy">misc at zarb.org
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<I>Wed Jul 13 09:13:06 CEST 2011</I>
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<PRE>On Tue, Jul 12, 2011 at 03:03:46PM +0200, philippe makowski wrote:
><i> Hi,
</I>><i>
</I>><i> remember this first draft (<A HREF="http://mageia.org/wiki/doku.php?id=python_policy">http://mageia.org/wiki/doku.php?id=python_policy</A>)
</I>><i> that is still a draft
</I>><i>
</I>><i> now we have also Python3 so we really need to write our policy
</I>><i> I see mainly two majors points :
</I>><i>
</I>><i> 1/ pyc, pyo management
</I>><i> 2/ having Python2 and Python3
</I>><i>
</I>><i> about 1/ :
</I>><i> it seems that the best would be to package only py (smallest packages)
</I>><i> and having triggers on install and on remove to manage pyc and pyo
</I>><i> (That's in fact the Debian way
</I>><i> (<A HREF="http://www.debian.org/doc/packaging-manuals/python-policy/ch-module_packages.html#s-byte_compilation">http://www.debian.org/doc/packaging-manuals/python-policy/ch-module_packages.html#s-byte_compilation</A>))
</I>><i>
</I>><i> if we go this way, we need someone to write triggers and people to
</I>><i> review all Python packages
</I>><i> (I'm ok to work on that review, for triggers, I have no clue on how to
</I>><i> do, but may be that with some help I could try)
</I>
The tricky part was not to make sure that file are properly ghosted ?
><i> about 2/ :
</I>><i>
</I>><i> again we have to review all Python packages to see if they run under
</I>><i> Python3 or not and to package them for Python2 and Python3
</I>><i> (I'm ok to work on that review)
</I>><i> may be that the Fedora policy can help us for that ?:
</I>><i> <A HREF="http://fedoraproject.org/wiki/Packaging/Python">http://fedoraproject.org/wiki/Packaging/Python</A>
</I>
I would be in favor of treating python2 and python 3 as 2 differents languages.
The rational is that :
- we cannot garantee to have support for both
- we will likely have some module who would be updated only on
python 3 sooner or later
- we will need to do upgrade of package at different time, since both python2 and python3 are
released at different time.
So rather than a complex scheme that will confuse packagers, just consider they
are separate, and use the almost same policy ( with s/python/python3/ )
Regarding a review of all package, that sound like daunting task :/
--
Michael Scherer
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