Integration tests failing on kiwisolver.

[jaraco]

In the latest release, the integration tests failed.

_____________________ test_install_sdist[kiwisolver-1.3.2] _____________________
package = 'kiwisolver', version = '1.3.2'
tmp_path = PosixPath('/tmp/pytest-of-runner/pytest-0/test_install_sdist_kiwisolver_0')
venv_python = '/tmp/pytest-of-runner/pytest-0/test_install_sdist_kiwisolver_0/.venv/bin/python'
setuptools_wheel = PosixPath('/tmp/pytest-of-runner/pytest-0/wheel_build/setuptools-63.2.0.post20220713-py3-none-any.whl')
    @pytest.mark.parametrize('package, version', EXAMPLES)
    @pytest.mark.uses_network
    def test_install_sdist(package, version, tmp_path, venv_python, setuptools_wheel):
        venv_pip = (venv_python, "-m", "pip")
>       sdist = retrieve_sdist(package, version, tmp_path)
setuptools/tests/integration/test_pip_install_sdist.py:118: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
setuptools/tests/integration/test_pip_install_sdist.py:145: in retrieve_sdist
    dist = retrieve_pypi_sdist_metadata(package, version)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
package = 'kiwisolver', version = '1.3.2'
    def retrieve_pypi_sdist_metadata(package, version):
        # https://warehouse.pypa.io/api-reference/json.html
        id_ = package if version is LATEST else f"{package}/{version}"
        with urlopen(f"[https://pypi.org/pypi/{id_}/json](https://pypi.org/pypi/%7Bid_%7D/json)") as f:
            metadata = json.load(f)
        if metadata["info"]["yanked"]:
            raise ValueError(f"Release for {package} {version} was yanked")
        version = metadata["info"]["version"]
>       release = metadata["releases"][version]
E       KeyError: 'releases'

[jaraco]

I tried to replicate the issue locally, so I ran tox -e integration -- -k kiwisolver, but that execution failed because of the way the integration tests are configured in tox.ini:

setuptools/tox.ini

Lines 32 to 33 in f747e8b

	commands =
	pytest --integration {posargs:-vv --durations=10 setuptools/tests/integration}

Passing any posargs causes setuptools/tests/integration to be omitted from the args.

Moving that phrase outside the "default args" works around that issue and I'm able to replicate the failure.

[jaraco]

I suspect something change about API of warehouse that affects the way version-specific releases are referenced. kiwisolver is the only one that doesn't specify LATEST.

[jaraco]

Confirmed the breaking change was intentional: pypi/warehouse#11775

[jaraco]

I manually cut the v63.2.0 release.