[Nexus] Targets for the NAPI build - a new try with a poll

[Osborn, Raymond]

Eugen,
I filled in the poll and, of course, stated that Python was important to me. However, my personal view is that we should deprecate the Python bindings in the NAPI release, and refer people to the nexusformat package (https://pypi.python.org/pypi/nexusformat), which contains the underlying API without the NeXpy GUI. This API does not have a dependency on the NAPI, since it uses h5py directly, so it doesn’t have to be installed at the same time. The old Python binding may need to be kept for legacy reasons, since the new one doesn’t read HDF4 or XML, but such files could probably be easily converted to HDF5 if nxconvert is maintained.

Ray
P.S. The DISCUS simulation package is written in F90 and was recently converted to output NeXus files, so there is still a need for it. I don’t think the DISCUS author wants to have to learn how to use HDF5 when a simple NAPI example showed all that he needed to do.

On Jun 22, 2015, at 10:11 AM, Eugen Wintersberger <eugen.wintersberger at desy.de<mailto:eugen.wintersberger at desy.de>> wrote:

Hi folks,
my last mail concerning the required build targets for the NAPI build
seems to have started a quite interesting discussion about the NAPIs
status. Unfortunately, none of the contributions, as interesting they
were, really solved my problem.

So I've set up a doodle poll which I would like to ask you to
participate in. You find the poll here

http://doodle.com/b7bi6nh5rggc5mw4

This will hopefully answer my questions. Let me make one remark: the
list of selections in the poll was assembled after a quick look at the
current source tree. I have no glue what's the current development
status of some of the bindings. Anyhow, the poll may answer the question
what people expect from NAPI.

Concerning the status of NAPI: from my interpretation of what has been
agreed on during the NAIC meeting in Abington, the NAPI will only be
maintained in order to keep old programs, which are using it, running.
However, it is not recommended to use NAPI for new projects.

regards
 Eugen

--
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DI. Dr. Eugen Wintersberger

FS-EC
DESY
Notkestrasse 85
D-22607 Hamburg
Germany

E-Mail: eugen.wintersberger at desy.de
Telefon: +49-40-8998-1917
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Ray Osborn, Senior Scientist
Materials Science Division
Argonne National Laboratory
Argonne, IL 60439, USA
Phone: +1 (630) 252-9011
Email: ROsborn at anl.gov<mailto:ROsborn at anl.gov>


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