Date: Thu, 1 Feb 2018 16:10:21 +0100 From: Roland Smith <rsmith@xs4all.nl> To: Gerhard Schmidt <estartu@ze.tum.de> Cc: FreeBSD Python <freebsd-python@freebsd.org> Subject: Re: Installing a port to a specific python version Message-ID: <20180201151021.GA52705@slackbox.erewhon.home> In-Reply-To: <6825a87e-60ec-f3bd-3368-2a6a519667bb@ze.tum.de> References: <6825a87e-60ec-f3bd-3368-2a6a519667bb@ze.tum.de>
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On Wed, Jan 31, 2018 at 08:00:55AM +0100, Gerhard Schmidt wrote:
> Hi
>
> I'm having a small problem with python and FreeBSD. I'm a python
> developer. I Maintain some legacy code written in python2.7 and some new
> projects in Python 3.6 and for testing purposes i need python 3.4 and
> 3.5. So I need all this versions of python on my system, at least to be
> able to create virtual envs.
>
> Installing the python interpreters is not a problem, but installing
> python packages.
>
> How can in say a port it shouldn't use the default version stated in
> make.conf but a specific version. I don't want to change the default
> version every time i install a Port.
>
> I've tried to set PYTHON_VERSION as environment variable.
> I've tried to give PYTHON_VERSION as parameter to make.
> I've tried to give PYTHON as parameter to make.
> I've tried python3.5 python35 3.5 and 35 with each of them, it still
> installed the default python version.
>
> Then i tried make PYTHON_DEFAULT=3.5 and get a error message.
Python ports work with "flavors" now. See the entries for 20171130 in
/usr/ports/UPDATING.
Use it like this::
cd /usr/ports/<foo>
make FLAVOR=py36 install clean
If you always want a specific version of a port, you can put the following in
/etc/make.conf::
.if ${.CURDIR:M*/devel/ipython}
FLAVOR=py36
.endif
If you always want to build ports for all supported versions of Python, use
the following in /etc/make.conf::
BUILD_ALL_PYTHON_FLAVORS=true
You *might* be able to restrict that to a specific package, like this::
.if ${.CURDIR:M*/www/py-requests}
BUILD_ALL_PYTHON_FLAVORS=true
.endif
According to the docs, `pkg` supports flavors. But I can't find anything in
the manpage.
Hope this helps,
Roland
--
R.F.Smith http://rsmith.home.xs4all.nl/
[plain text email much appreciated]
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