Two problems in tests phase

[Universebenzene]

Describe the bug

1. Tests cannot begin with vispy>=0.9.1, as it gives:

   E   ImportError: cannot import name 'VERT_SHADER' from 'vispy.visuals.volume' (/usr/lib/python3.10/site-packages/vispy/visuals/volume.py)

   Also the import glue_vispy_viewers.isosurface.multi_iso_visual will give the same error.

2. When test with vispy 0.9.0, tests in test_session_back_compat.py will give ModuleNotFoundError: No module named 'echo.list'. Probably because the commit b809f7e forgot to delete list after changed the glue.external.echo into echo, as the glue.external.echo has list.py, but echo doesn't. Change all echo.list.CallbackList into echo.CallbackList or echo.containers.CallbackList will solve this problem.

To Reproduce

1. Run import glue_vispy_viewers.isosurface.multi_iso_visual or just run the tests with vispy >= 0.9.1 will get problem 1.
2. Runing tests with vispy 0.9.0 will get problem 2.

Details:

• Operating System: Arch Linux
• Python version (python --version): Python 3.10.5
• Glue version (glue --version): 1.5.0
• How you installed glue: install the package built via PKGBUILD on archlinux, withpython setup.py command inside the packaging script.

Additional context

I also tried running import glue_vispy_viewers.isosurface.multi_iso_visual inside a virtualenv with glue-vispy-viewers installed via pip, and problem 1 occured as well.

[dhomeier]

Thanks for the report; the tests and some other issues are fixed in #373. If you are familiar with installing dev versions, could you test if pip install --upgrade git+https://github.com/dhomeier/glue-vispy-viewers.git@78e0cc7 works for you? (Or checkout and install)

git checkout -b dhomeier-echo-vispy-updates master git pull https://github.com/dhomeier/glue-vispy-viewers.git echo-vispy-updates

This will probably still leave the isosurface renderer broken; I am afraid there is no short-term fix for that in sight.

[Universebenzene]

@dhomeier Ah, I forgot to check the on-going pull requests, so I didn't recognize your fixing 😂

I just built and installed a 1.0.5.r5.g78e0cc7 version from your repo, and neither of those two problems occured again. Good job 👍

Hope your fixing will be merged soon. Thanks! 😃

[dhomeier]

Closed by #373