[PATCH 11/11] python: remove auto-generated pyproject.toml file

[John Snow <jsnow@redhat.com>]

For reasons that at-present escape me, pipenv insists on creating a stub
pyproject.toml file. This file is a nuisance, because its mere presence
changes the behavior of various tools.

For instance, this stub file will cause "pip install --user -e ." to
fail in spectacular fashion with misleading errors. "pip install -e ."
works okay, but for some reason pip does not support editable installs
to the user directory when using PEP517.

References:
  https://github.com/pypa/pip/pull/9990
  https://github.com/pypa/pip/issues/7953

As outlined in ea1213b7ccc, it is still too early for us to consider
moving to a PEP-517 exclusive package. We must support support older
distributions, so squash the annoyance for now. (Python 3.6 shipped Dec
2016, PEP517 support showed up in pip sometime in 2019 or so.)

Add 'pyproject.toml' to the 'make clean' target, and also delete it
after every pipenv invocation issued by the Makefile.

Signed-off-by: John Snow <jsnow@redhat.com>
---
 python/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/python/Makefile b/python/Makefile
index 06f78f760a..758ce2c8d8 100644
--- a/python/Makefile
+++ b/python/Makefile
@@ -49,6 +49,7 @@ help:
 pipenv: .venv
 .venv: Pipfile.lock
 	@PIPENV_VENV_IN_PROJECT=1 pipenv sync --dev --keep-outdated
+	rm -f pyproject.toml
 	@touch .venv
 
 check-pipenv: pipenv
@@ -84,6 +85,7 @@ check-tox:
 
 clean:
 	python3 setup.py clean --all
+	rm -f pyproject.toml
 
 distclean: clean
 	rm -rf qemu.egg-info/ .venv/ .tox/ $(QEMU_VENV_DIR) dist/
-- 
2.31.1