Installing SE++ on CentOS Linux release 7.9.2009

[hjmcc]

Dear SourceXtractorPlusPlus developers,

Our sysadmin has attempted to install SE++ on our CentoOS cluster. He has installed the following astromatic solfware packages

Alexandria.x86_64 2.18-1.el7
CCfits.x86_64 2.5-14.el7
Elements.x86_64 5.12-1.el7
SourceXtractorPlusPlus.x86_64 0.15-dev.el7
scamp.x86_64 2.7.3-1.el7
sextractor.x86_64 2.24.2-2.el7
skymaker.x86_64 4.0.1-1.el7
stuff.x86_64 2.0.0-1.el7
wcslib.x86_64 5.10-1.el7

unfortunately when we try to run the software, we have the following error:

03% ./coms.sh
2021-04-21T14:56:10CEST Config INFO : Loaded segmentation filter: gauss2.4.fits height: 11 width: 11
2021-04-21T14:56:10CEST Python::Interpreter ERROR : Python exception No module named astropy
2021-04-21T14:56:10CEST Python::Interpreter ERROR : File "dser.py", line 3, in
2021-04-21T14:56:10CEST Python::Interpreter ERROR : File "/usr/lib64/python2.7/site-packages/sourcextractor/config/init.py", line 21, in
2021-04-21T14:56:10CEST Python::Interpreter ERROR : File "/usr/lib64/python2.7/site-packages/sourcextractor/config/model_fitting.py", line 26, in
2021-04-21T14:56:10CEST SourceXtractor FATAL : No module named astropy

What should we do?

[ayllon]

Hello,

Unfortunately CI rpms only contain dependencies that can be directly inferred via the linked libraries, so astropy has to be installed manually.

yum install python-astropy

That should do the trick.

This said, you are installing from the continuous integration and, more precisely, from the development branch. If it is a production cluster, it might be better to get a released version?

[mkuemmel]

Dear Henry,

not knowing what you want to do, SE++ is integrated into LODEEN/EDEN-2.1, meaning in all the EDEN-2.1 compatible VM's or dockers or whatever you automatically have SE++ available (all versions plus develop branch). The last release you get via:
$ E-Run SourceXtractorPlusPlus 0.14 sourcextractor++ --help

Not sure whether this is relevant...