* Remove all usage of python2_3.py
Technically these functions were exported at the top level of the library, this removes them without warning... If we want to we can bring them back for there, but I honestly don't think its needed, as we are py3 only now and have been for multiple releases.
This may introduce a number of 'useless cast' or similar but those were always happening anyway
This PR brought to you by sed
* Update varname in hdf example to avoid collision with builtin
* Clean up some leftover comments surrounding imports of compat code
* Unnecessary string casts
* Additional unnecessary casts
* syntax error fix
* more unnecessary casts
* Yet more unnecessary casts
To reduce complexity, and make it easier to add more images and tests,
the images in the `test-data` repository should be merged with the main
repository. Furthermore, we can remove a lot of the subprocess work in
the image_testing.py file, as we no longer need to have it interact with
git.
The images are not the same. Images were regenerated with Qt6, and now
have proper big and little endian handling thanks to @pijyoi
Second commit is a slightly modified variant of
2e135ab282d6007b34a3854921be54d0e9efb241 authored by @pijyoi
it is to convert qimages to RGBA8888 for testing. Image
files were regenerated images for the big/little handling
Fixed issue with bogus test from test_NonUniformImage and generated a
new image
