[Nexus] Switching to a debate about NeXus + Python

[Pete R. Jemian]

Ray:

Does your project also support HDF4?
I believe Darren's phynx only supports HDF5.

Pete



On 3/10/2010 7:52 AM, Darren Dale wrote:
>
> On Mar 10, 2010, at 2:48 AM, Wellenreuther, Gerd wrote:
>
>> Hi Ray,
>>
>> I would like to talk about that module Paul Kienzle produced in more detail. The reason for that: A lot of scientists consider Python as a very good environment for scripting/programming purposes, and having a top-level python module supporting NeXus would be a very good thing.
>>
>> Recently, I have tried phynx written by Darren Dale, which is already providing support for NeXus. I know of h5py and pytables, which are capable of writing HDF5-files directly, but I would like to use a module which does most of the tiring and repetitive setting of the NeXus-internals like NXclass, signals, axes etc. itself.
>
> Phynx is currently a step in that direction, but it may be the case that Ray's project is further along since it is built upon the official nexus API.
>
>> I personally would also like to split the task of defining where which data during acquisition time has to go in the NeXus-file, from the task of actually writing the file. E.g. I built another module on top of phynx (which is itself on top of h5py, Darren, please correct me).
>
> Right, phynx is built on h5py because it has an intuitive interface, is thread-safe, and provides a near-complete wrapping of the hdf5 library.
>
> Darren
>
> ---
> Darren S. Dale, Ph.D.
> Staff Scientist
> Cornell High Energy Synchrotron Source
> Cornell University
> 275 Wilson Lab
> Rt. 366&  Pine Tree Road
> Ithaca, NY 14853
>
> darren.dale at cornell.edu
> office: (607) 255-3819
> fax: (607) 255-9001
> http://www.chess.cornell.edu
>
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-- 
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  Pete R. Jemian, Ph.D.                <jemian at anl.gov>
  Beam line Controls and Data Acquisition, Group Leader
  Advanced Photon Source,   Argonne National Laboratory
  Argonne, IL  60439                   630 - 252 - 3189
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     Education is the one thing for which people
        are willing to pay yet not receive.
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