On 20/04/12 23:11, Hans-Christoph Steiner wrote:
>
> Any thoughts on this? Any objections to me adding a bunch of 'systempython'
> packages? I'm not entirely sure how to do this right, so any ideas are
> helpful.
I have had systempython packages for a couple of years. Here is my take
on this:
I have (basically) two systempython packages (`fink list systempython`):
boost and pil. They are of different nature:
boost1.3X-systempython has no python modules. It provides libraries (in
header form, as static archives, and as dylibs) that use python for
building. There was even a time when it didn't matter which kind of
python was used for building. This is no longer the case, so I had to
distinguish pythonXY (XY=25,26,27) and systempython variants. To make
the shlibs packages compatible, I placed the dylibs into
/sw/lib/pythonX.Y/site-packages for the pythonXY variants and into
/sw/lib for the systempython variant. This is completely arbitrary,
because they are dylibs, so they will be found by their install_name
wherever that is.
For pil-systempythonXY, this is different. This is a python module that
needs to be found by python upon "import PIL". I decided to mimic the
system python tree structure by introducing the directory
/sw/Library/Python. This then contains X.Y/include and X.Y/site-packages
subdirectories. One has to add /sw/Library/Python/2.5/site-packages to
the runtime variable PYTHONPATH.
This works nicely and is parallel to /sw/Applications (used by packages
that produce apps) and /sw/Library/Frameworks (used by aquaterm). While
the latter two (originally my invention, too) have been accepted by the
fink validator, /sw/Library/Python is not yet officially accepted. I
suggest to officialize it and to use it for other systempython packages.
One problem with systempython modules is that the system python also
comes in different versions. IIRC, the latest ('/usr/bin/python') is 2.5
for 10.5, 2.6 for 10.6, and 2.7 for 10.7. But on all systems, earlier
versions still exist. So if you do not want to make different
systempythonXY variants for different distributions, you can use
/usr/bin/python2.5 on all 3 supported OSX versions. For
pil-systempython, which currently uses the latest version and therefore
has different XY variants for different distributions, I will probably
come back to using XY=25 for all 3 distributions.
--
Martin
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