Hi Tony,
Thanks for the write-up.
- Switch to the new canonical constraints URL on master
At the last Denver PTG we also discussed the switch from UPPER_CONSTRAINTS_FILE environment variable to TOX_CONSTRAINTS_FILE. As this change and the switch from UPPER_CONSTRAINTS_FILE to TOX_CONSTRAINTS_FILE would touch the very same line of text in the tox.ini, I would suggest that we combine that into one review as that is ~ 300 reviews less to conflict-merge and resolve when both would happen independently at the same time.
I started the patch series to add TOX_CONSTRAINTS_FILE in addition to UPPER_CONSTRAINTS_FILE so that lower-constraints setting looks less odd here:
https://review.opendev.org/657886 https://review.opendev.org/660187
Would be good to get this in in-time so that requirements team can do both changes in one review set.
Thanks, Dirk