Some discussion happened on core-workflow@, otherwise you can look through the python-dev archives for when we added sys._mercurial.
Brett Cannon <brett@python.org> writes:
> (and no, we are not going to adopt a generic one; already had that
> debate).
Do you have a link to the relevant discussions?
_______________________________________________
Python-Dev mailing list
Python-Dev@python.org
https://mail.python.org/mailman/listinfo/python-dev
Unsubscribe: https://mail.python.org/mailman/options/python-dev/brett%40python.org