The tiny sewpy
module lets you run SExtractor <http://www.astromatic.net/software/sextractor>
_ as if it would all be native python...
.. code-block:: python
import sewpy
sew = sewpy.SEW(params=["X_IMAGE", "Y_IMAGE", "FLUX_RADIUS(3)", "FLAGS"],
config={"DETECT_MINAREA":10, "PHOT_FLUXFRAC":"0.3, 0.5, 0.8"})
out = sew("myimage.fits")
print out["table"] # this is an astropy table.
... but also allows for a more sophisticated use, for instance if you want to use existing SExtractor input files.
Why yet <https://pypi.python.org/pypi/pysex/>
another <https://gitorious.org/pysextractor>
SExtractor wrapper ? Because we needed one that:
astropy <http://www.astropy.org>
_ (in particular astropy.table
),logging
(and also logs SExtractor's stdout & stderr to file),tempfile
to hide all input and output files, except if you want to see themASSOC
process (give me an input catalog, and I append columns with SExtractor measurements to it).The demos in the examples
directory can be run without installing sewpy, and provide a quick overview.
.. code-block:: bash
python setup.py install --user
To learn more about how to install and use sewpy
, proceed to its documentation <http://sewpy.readthedocs.org>
_.