Allow root

[372046933]

fix #166

[cpsauer]

[commented back on the issue to scope]

[cpsauer]

As with #166:

Reverted rules_python in 0b821b7. Tracking restoration in #168.

That avoids this for now, but seriously, worth chiming in on bazel-contrib/rules_python#1169 so they fix it for future use.
(Just holler if you want me to reopen.)

Thanks again for helping leave things better than you found them!