[BioPython] FreeBSD's handling of multiple Pythons

[Johann Visagie]

For FreeBSD users out there, this will be how FreeBSD will handle the
situation with multiple versions of Python floating about.  I'll hold off
submitting a FreeBSD port of -d03 until these things have propagated.

I don't know how successful this approach will be, but it seems sensible and
we'll probably see similar things from some of the Linux distros.

-- Johann


----- Forwarded message from Thomas Gellekum <tg@melaten.rwth-aachen.de> -----

> From: Thomas Gellekum <tg@melaten.rwth-aachen.de>
> Subject: Re: How are future Python ports going to be handled?
> To: Johann Visagie <wjv@cityip.co.za>
> Cc: ports@FreeBSD.ORG
> Date: 07 Sep 2000 13:45:08 +0200
> 
> Thanks for asking, I was going to write this mail anyway. :-)
> 
> Johann Visagie <wjv@cityip.co.za> writes:
> 
> > There's so much breakage involved in going from 1.5.2 to 1.6 that I
> > personally wouldn't think it's advisable to update the lang/python port to
> > 1.6 straight away.  Maybe we'll be faced with the less-than-ideal situation
> > where we'll have multiple ports installing multiple versions, with (possibly)
> > multiple binary names(?)
> 
> There will be:
> 
> lang/python15    (repo-copy already done)
> lang/python      (1.6 for now, 2.0 when it's out)
> lang/python-beta (2.0b1 for now, will be killed again later)
> 
> I will modify all the ports that install extensions into
> .../python1.5/site-packages to check for python1.5:lang/python15 as to
> not break package building. These upgrades will happen tomorrow (I
> have the changes ready, just wait another day).
> 
> I also wrote a bsd.python.mk which should handle the case of
> installing an extension for an older version of python, i.e. you
> should be able to say `cd /usr/ports/x11-toolkits/py-tkinter; make
> PYTHON_VERSION=python1.5' and have it build and install the stuff into
> /usr/local/lib/python1.5 instead of, say, /usr/local/lib/python2.0.
> This can also be used to build things like zope or mailman which might
> expect an older python version.
> 
> I think this should cover most bases.
> 
> tg

----- End forwarded message -----