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<H1>[Mageia-dev] Minimal patching vs. fixing the whole Universe</H1>
<B>Colin Guthrie</B>
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TITLE="[Mageia-dev] Minimal patching vs. fixing the whole Universe">mageia at colin.guthr.ie
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<I>Thu Jun 23 00:08:35 CEST 2011</I>
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<PRE>'Twas brillig, and David W. Hodgins at 22/06/11 22:51 did gyre and gimble:
><i> On Wed, 22 Jun 2011 16:47:40 -0400, Radu-Cristian FOTESCU
</I>><i> <<A HREF="https://www.mageia.org/mailman/listinfo/mageia-dev">beranger5ca at yahoo.ca</A>> wrote:
</I>><i>
</I>>><i> As long as '/usr/bin/env python' _works_, I see no point in trying to
</I>>><i> rewrite other people's work.
</I>><i>
</I>><i> Excluding the calibre scripts, in /usr/bin of a Mageia 1 kde clean
</I>><i> installation ...
</I>><i> # grep -I python *|grep '#!'|grep env
</I>><i> ebook-convert:#!/usr/bin/env python
</I>><i> ebook-device:#!/usr/bin/env python
</I>><i> ebook-meta:#!/usr/bin/env python
</I>><i> ebook-viewer:#!/usr/bin/env python
</I>><i> epub-fix:#!/usr/bin/env python
</I>><i> fetch-ebook-metadata:#!/usr/bin/env python
</I>><i> gsettings-schema-convert:#!/usr/bin/env python
</I>><i> jack_control:#!/usr/bin/env python
</I>><i> lrf2lrs:#!/usr/bin/env python
</I>><i> lrfviewer:#!/usr/bin/env python
</I>><i> lrs2lrf:#!/usr/bin/env python
</I>><i> markdown-calibre:#!/usr/bin/env python
</I>><i> pdfmanipulate:#!/usr/bin/env python
</I>><i> pykdeuic4:#!/usr/bin/env python
</I>><i> pykdeuic4:header = """#!/usr/bin/env python
</I>><i> web2disk:#!/usr/bin/env python
</I>><i>
</I>><i> In general, I agree with you. If it isn't broken, don't fix it.
</I>><i>
</I>><i> However, in this case, the python2 had to be changed to python.
</I>><i>
</I>><i> The environment is not being modified, so it is adding an unneeded process,
</I>><i> which should be discouraged.
</I>><i>
</I>><i> Since you have to change the line anyway, I have to agree with Ahmad, that
</I>><i> it should be changed to #!/usr/bin/python.
</I>
I think it's relatively unimportant overall, but:
1) /usr/bin/python should be marginally faster
2) /usr/bin/python prevents you testing easily with a new python
version (or just a new build) in a custom prefix).
So 1) is a (very slight) pro for everyone, but 2) is a pretty big con
for developers playing with python builds.... of course in that case a
simple "sudo mv /usr/bin/python /usr/bin/python.orig; ln -s
/path/to/my/custom/build/of/python /usr/bin/python" should allow said
developer to test fine.
Col
--
Colin Guthrie
mageia(at)colin.guthr.ie
<A HREF="http://colin.guthr.ie/">http://colin.guthr.ie/</A>
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