Add a build helper session

Author: fayazkhan

RELEASING.rst

@@ -3,7 +3,7 @@ Releasing
 
 1. Merge all intended and verified pull requests into the ``master`` branch.
 2. Create a local build and test:
-    - Run ``python -m build`` to create a source distribution and a wheel.
+    - Run ``uv run noxfile.py -s build`` to create a source distribution and a wheel.
     - Install both artifacts in a fresh virtual environment to ensure they work correctly.
 3. Bump the version number in ``setup.py``. (May be included in the pull request.)
 4. Update the changelog in ``CHANGES.rst``.

noxfile.py

@@ -93,5 +93,12 @@ def dev(session):
     session.run(".venv/bin/pip", "install", "-e", ".", external=True)
 
 
+@nox.session(default=False)
+def build(session):
+    """Build the package."""
+    session.install("build")
+    session.run("python", "-m", "build")
+
+
 if __name__ == "__main__":
     nox.main()