[petsc-dev] python2 vs python3 wrt configure

[Barry Smith]

 configure.log contains the python version used. Can we scarf up the version for say the last three years of all configure.log we have received and view the trend of pre 2.6 ones still being used? Won’t be a perfect measure, but at least it is a measure.

   Barry

On Oct 24, 2013, at 1:52 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:

> Satish Balay <balay at mcs.anl.gov> writes:
> 
>> Do you know if archlinux will switch over to using the guideline from python.org?
> 
> The guideline does not prohibit Arch from doing what they did (3 years
> ago).  It says that scripts should use "python2" if they will only work
> for python-2.x and use "python" if they work for both python-2.x (x=6 or
> 7 in practice) and 3.y.
> 
>> We are currently using python version from RHEL as a guideline. RHEL5
>> has python 2.4 with eol in march-2017.
>> 
>> And I see RHEL6 has python-2.6
> 
> Python-2.5 was released in 2006, so this is more than 10 years.  We're
> not very tolerant of PETSc users that are still using petsc-2.1.2.
> 
> This is not to say we have to drop support right away, but python-2.4 is
> getting quite old and forces us to use a number of more fragile
> constructs.  We may have trouble holding out until 2017.