[AstroPy] Proliferating py-astro-libs

Andy Casey acasey at mso.anu.edu.au
Mon Jun 13 15:48:28 EDT 2011

Hi all,

> One quick question. I have not looked at pyRAF in a while, but it still is only
> a wrapper of the IRAF routines, right? Has anyone considered migrating away
> from the IRAF backend to build pure python or C/Fortran wrapped packages
> of the same routines? To me the installation of of IRAF and then pyRAF on top
> of that has always been a barrier I never have quite made it through. I know
> that one can install the Stsci package, but last time I looked it installs itself
> on the root directory and consists of way to much non-python related stuff.
> I find that hard to deal with as I as a mac-user use Activestate python with
> the framework structure, which to me is very clean and easy to keep organized.

I couldn't agree more. A colleague and I have started this process with one-dimensional and echelle spectra; a module we've named pyspec. It's a python class object which handles spectroscopic data in a native way, allowing you to do all the maths/modifications that you might normally want to do to spectra. 

Although we haven't released it yet because a more definitive suite of tests and utilities are required, we both use it everyday. We plan to introduce this to astrolib once it's documented further and more of the planned utilities are written (fitprofs, fxcor, normalise, etc). Any and all comments are welcome.


I think a discussion towards a full suite of asto libraries in python is an excellent idea! If there is a splinter meet-up at Scipy/AAS/similar, I think a documented outline covering what happens at the event would be very helpful for those who cannot attend.


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