This is almost all find-and-replace.
I manually edited:
* pkgs/development/python-modules/notifications-android-tv/default.nix,
* pkgs/servers/home-assistant/default.nix,
* pkgs/development/tools/continuous-integration/buildbot/master.nix
A few files have not been changed in this PR because they would cause rebuilds.
This PR should have 0 rebuilds.
If a Python package does not come with either `format` or `pyproject` we
consider it a setuptools build, that calls `setup.py` directly, which is
deprecated.
This change, as a first step, migrates a large chunk of these packages to
set setuptools as their explicit format
This is so we can unify the problem space for the next step of the
migration.
As I said before, I want to keep a narrow focus on Nixpkgs. Now that I am back
at undergrad, this focus should be even narrower: I will keep my eyes on Emacs,
and nothing else.
