Hi Jakob,
On 04/10/2018 13:40, Jakob Schiøtz wrote:
Dear all,
Am I right in remembering that the correct version of Python to use with the
foss/2018b and intel/2018b toolchains is Python 3.6.6 and not Python 3.7.0?
At least it seems to be 3.6.6 that has various python modules available.
But for iomkl/2018b, only version 3.7.0 is available. Should I add 3.6.6 while
adding ASE and matplotlib, or should I use 3.7.0 in this case (or in all
cases?).
We initially started with Python 3.7.0 for the 2018b toolchain
generation, but ran into several problems and therefore switched to
Python 3.6.6 before creating easyconfigs that have Python 3.7.0 as a
dependency included.
We left the easyconfig files for Python 3.7.0 in place though (since
they were already included in an EasyBuild release at that time).
There was a small problem with pandas that didn't officially support
Python 3.7 yet + similar issues with several other Python packages.
Also a rather major issue has surfaced recently with numpy, see
https://www.opensourceanswers.com/blog/you-shouldnt-use-python-37-for-data-science-right-now.html
.
It seems like a couple of backwards-incompatible things have crept into
Python 3.7.0, so in my experience it's a bit too early to start relying
on it heavily...
Maybe the Python core developers are scared of bumping the major version
number? ;-)
Long story short: it makes sense to add an easyconfig for Python 3.6.6
with iomkl/2018b, indeed.
regards,
Kenneth
Best regards
Jakob
--
Jakob Schiøtz, professor, Ph.D.
Department of Physics
Technical University of Denmark
DK-2800 Kongens Lyngby, Denmark
http://www.fysik.dtu.dk/~schiotz/
