Updating a config with a shared core for python 3

I have an old config I made when using a python 2 only core that is giving me errors now in python3 since is uses a reload statement without importing it.

Is there somewhere I can grab an updated version of this file for python 3.
{config}/install/core/python/tank/__init__.py

I assume it should be somewhere in the shared core but I’m not seeing it.

I found it in setup/tank_api_proxy/tank/__init__.py but it looks like it hasn’t been properly updated when I go look at github for core.