Multiple Python versions

[cpghost]

On Wed, Jan 07, 2009 at 10:31:24PM +0100, cpghost wrote:
> On Wed, Jan 07, 2009 at 02:02:40PM +0100, Gerhard Schmidt wrote:
> > Hi,
> > 
> > I've two python versions running on my workstation. Python2.4 for Zope and
> > Python2.5 because even some X11 components need python2.5 these days.
> > 
> > when i try to install some python packages in bot versions via ports i get
> > this error message.
> > 
> > ===>  Installing for py25-dbus-0.83.0_1
> > ===>   py25-dbus-0.83.0_1 depends on file: /usr/local/bin/python2.5 - found
> > ===>   Generating temporary packing list
> > ===>  Checking if devel/py-dbus already installed
> > ===>   An older version of devel/py-dbus is already installed
> > (py24-dbus-0.83.0_1)
> >       You may wish to ``make deinstall'' and install this port again
> >       by ``make reinstall'' to upgrade it properly.
> >       If you really wish to overwrite the old port of devel/py-dbus
> >       without deleting it first, set the variable "FORCE_PKG_REGISTER"
> >       in your environment or the "make install" command line.
> > 
> > Wasn't the version prefix to allow a port being installed in two different
> > Python Version.
> > 
> > Any way to get this working without having to force the installation every
> > time.
> 
> You can try this in /etc/make.conf:
> 
> # Global setting
> PYTHON_DEFAULT_VERISON=python2.5
                 ^^^^^^^

sorry, typo. s/VERISON/VERSION/

> # some/py-port requires python2.4 (install py24-... port)
> .if ${.CURDIR:M*/some/py-port}
> PYTHON_DEFAULT_VERSION=python2.4
> .endif
> 
> It's not perfect, because some pyNN-... ports still share some
> files, esp. scripts in /usr/local/bin, etc., but it works for many
> Python ports already. ;)
> 
> > Regards
> > 	Estartu

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