FYI: Python 3 support is here!

[rbgirshick]

This is an FYI issue to keep people informed of an upcoming change.

In the near future (1-2 weeks baring unexpected issues), we plan to release updates to fully support Python 3. Python 3 will be preferred over Python 2, though both should work and whichever your default #!/usr/bin/env python is will be the one that runs Detectron. We will continue to support both versions for some time going forward, but will eventually phase out Python 2 support in the sense of no longer actively testing that it works, though we will likely address breakage in a reactive manner.

[rbgirshick]

Landed this morning in commits 101-104. Thanks to @ashwinb for making it possible!

[zakdances]

This is great! Any possibility of updating the Dockerfile for py3, CUDA 9, etc? I've been trying for a long time to make one myself, but haven't been able to get passed the non-stop env path errors.

[saracloud]

Any update on this?

Thanks,
Sara