Fix ModuleNotFoundError for Python 3 - (see Issue #13)

[tokjun]

No description provided.

[mehrtash]

Thanks @tokjun .

More changes are required to make the module compatible with python 3.

Here is a brach that I've created for this purpose: https://github.com/DeepInfer/Slicer-DeepInfer/compare/python3

It still needs some work.

[tokjun]

Do you have any timeline?
I'm trying to run SliceTracker module on the new Slicer release 4.11, but it fails to load because of Python 3 incompatibility in several dependencies including DeepInfer. So it would be great if we could at least make the module loadable (if not functional) any time soon.

https://discourse.slicer.org/t/slicetracker-module-cannot-be-loaded-on-slicer-4-11-20200930/13895

Thanks!