modeleditor fails to load

[joeastro]

Under the 'ModelEditor' section of the notebook Generating_XML_Models, the command "%system modeleditor" fails to open the tool. The error message indicates that python cannot import the ds9 module.

Currently investigating further.

[joeastro]

OK, I found the issue and figured out a solution. The source of the problem is that ds9, which modeleditor uses, is installed a bit differently in the Docker container. We are using pyds9 in the container instead of plain-old ds9, which makes the following module fail when it tries to import the latter:

/home/astrosoft/sciencetools/glast/x86_64-unknown-linux-gnu-libc2.12/lib/python/DS9Connector.py

So, the best solution seems to be editing DS9Connector.py to look for pyds9, like so:

change this line:
from ds9 import *

to this:
try:
from ds9 import *
except Exception:
from pyds9 import *

Now modeleditor opens without issue. A patch file seems to be the best way to address this (i.e. overwrite the existing DS9Connector.py file with a fixed one).

[kialio]

I thought we weren't really developing model editor anymore. But tagging @not-kimiko anyway.