taskGNU Astronomy Utilities - Tasks: task #15913, Python wrappers for Gnuastro's...


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task #15913: Python wrappers for Gnuastro's programs

Submitter:  Mohammad Akhlaghi <makhlaghi>
Submitted:  Mon 08 Mar 2021 01:38:29 PM UTC
Should Start On:  Mon 08 Mar 2021 12:00:00 AM UTC Should be Finished on:  Mon 08 Mar 2021 12:00:00 AM UTC
Category:  All Gnuastro Priority:  5 - Normal
Item Group:  Enhancement Status:  Done
Privacy:  Public Percent Complete:  100%
Assigned to:  None Open/Closed:  Closed
Effort:  0.00

Sun 29 Jan 2023 12:51:33 PM UTC, comment #1: 

Through pyGnuastro, we now have Python wrappers for Gnuastro. So I am closing this task.

At this moment, pyGnuastro is packaged in test.pypi, however, it doesn't have much functionality. With the completion of task #16263, we will be able to easily insert many functions in pyGnuastro :-).

Mohammad Akhlaghi <makhlaghi>
Project Administrator
Mon 08 Mar 2021 01:38:29 PM UTC, original submission:  

Many processing pipelines use Python as their high-level language (for example Euclid, where some components use Python). In the future, we do plan to add direct Python access to Gnuastro's libraries (for example in task #13786). However, that will take time (since it is a pretty low-level feature).

In the meantime, to allow easy access within Python, we can write wrappers to call Gnuastro's programs. For example, someone may want to run NoiseChisel on an image (as a Numpy array in Python). We can write that image to a file, run NoiseChisel over that file, then read the output FITS file as a Numpy array and delete the file. The same can be done for other programs. Or useful complex scenarios (for example using Arithmetic to stack images in a unique way, or calling NoiseChisel+Segment+MakeCatalog, or etc).

I have started a (currently empty) repository on Codeberg for this [1]. As of this moment (Commit 911803edbb), it just has a 'README.md' file, but please feel free to add useful python functions for now in separate files. As it grows, we'll add a Python module structure around it.

[1] https://codeberg.org/gnuastro/python-wrappers-programs

Mohammad Akhlaghi <makhlaghi>
Project Administrator


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