On Wed, Dec 04, 2013 at 02:41:30PM -0500, Ralph Bean wrote:
> Back in August, the {__python} macro was deprecated in favor of
> {__python2}. This is cool as it paves the way for an eventual python3
> takeover.
>
> https://fedoraproject.org/w/index.php?title=Packaging:Python&diff=350838&oldid=350837
>
> However, {__python} is still the expected macro for el6 builds. Many of us
> maintain single spec files that we build for Fedora and EPEL.
>
> - Does anyone have any recommendations about how to handle this?
>
Someone should take a look at the present guidelines but I think just using
/usr/bin/python2 (or python2 and letting PATH do the rest) is probably okay.
> I recently started using this blurb at the top of my new spec files.
> Will it do?
>
> %if 0%{?rhel} && 0%{?rhel} <= 6
> %{!?__python2: %global __python2 %{__python}}
> %{!?python2_sitelib: %global python2_sitelib %(%{__python} -c "from
> distutils.sysconfig import get_python_lib; print(get_python_lib())")}
> %{!?python2_sitearch: %global python2_sitearch %(%{__python} -c "from
> distutils.sysconfig import get_python_lib; print(get_python_lib(1))")}
> %endif
>
it's probably more correct to do this this way:
%if 0%{?rhel} && 0%{?rhel} <= 6
%{!?__python2: %global __python2 /usr/bin/python2}
%{!?python2_sitelib: %global python2_sitelib %(%{__python2} -c "from
distutils.sysconfig import get_python_lib; print(get_python_lib())")}
%{!?python2_sitearch: %global python2_sitearch %(%{__python2} -c "from
distutils.sysconfig import get_python_lib; print(get_python_lib(1))")}
%endif
> - If we decide on a canonical approach, can it be added to the Python
> guidelines as a recommendation?
>
Yeah, but please draft it up. I'm low on time so even completing writing of
the changes for this approved guideline change hasn't been something I've
gotten too:
https://fedorahosted.org/fpc/ticket/327#comment:9
-Toshio
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