Deeplabcut: Update to tensorflow 2

[tbenst]

Support for tensorflow 1 is starting to drop-off, and eventually will stop being supported. It would be great to update to tensorflow 2!

https://www.tensorflow.org/guide/migrate

[MMathisLab]

Hi @tbenst thanks for the note. We haven’t migrated yet as some parts of TF1 (tf-slim) we rely on were dropped in 2; there are ongoing discussions with TF developers (on their GitHub) to restore this - not just for us but many people. Until that happens we won’t be supporting TF 2.

If you’re interested, and/or want to contribute, this is the issue: https://www.tensorflow.org/guide/migrate#a_note_on_slim_contriblayers

[lauritk]

TF-Slim as separate package (v 1.1) should work with TF2.x. See https://github.com/google-research/tf-slim

[MMathisLab]

Thanks @lauritk! We are in the midst of a big update, but will check this out in the next weeks - appreciated! Or, if you get around to testing this, let me know. There is quite nice docs/tools for this now, but I haven't tried it for this repo: https://www.tensorflow.org/guide/migrate

[MMathisLab]

I started s WIP branch/issue on the dlccore repo is anyone wants to help chip away at this :) thanks! https://github.com/DeepLabCut/DeepLabCut-core/issues/6

[MMathisLab]

In case anyone wants to use TF 2.2, now it works: https://github.com/DeepLabCut/DeepLabCut-core/issues/6 ( <---you would need to install from this branch)