Add missing package test script used by Makefile

scripts/release/test_package.py

@@ -0,0 +1,52 @@
+from pathlib import Path
+import subprocess
+from tempfile import TemporaryDirectory
+import venv
+
+
+def create_venv(parent_path):
+    venv_path = parent_path / 'package-smoke-test'
+    venv.create(venv_path, with_pip=True)
+    subprocess.run([venv_path / 'bin' / 'pip', 'install', '-U', 'pip', 'setuptools'], check=True)
+    return venv_path
+
+
+def find_wheel(project_path):
+    wheels = list(project_path.glob('dist/*.whl'))
+
+    if len(wheels) != 1:
+        raise Exception(
+            f"Expected one wheel. Instead found: {wheels} in project {project_path.absolute()}"
+        )
+
+    return wheels[0]
+
+
+def install_wheel(venv_path, wheel_path, extras=()):
+    if extras:
+        extra_suffix = f"[{','.join(extras)}]"
+    else:
+        extra_suffix = ""
+
+    subprocess.run(
+        [
+            venv_path / 'bin' / 'pip',
+            'install',
+            f"{wheel_path}{extra_suffix}"
+        ],
+        check=True,
+    )
+
+
+def test_install_local_wheel():
+    with TemporaryDirectory() as tmpdir:
+        venv_path = create_venv(Path(tmpdir))
+        wheel_path = find_wheel(Path('.'))
+        install_wheel(venv_path, wheel_path)
+        print("Installed", wheel_path.absolute(), "to", venv_path)
+        print(f"Activate with `source {venv_path}/bin/activate`")
+        input("Press enter when the test has completed. The directory will be deleted.")
+
+
+if __name__ == '__main__':
+    test_install_local_wheel()