Release/0.3.1 (#48)

<!-- Provide a general summary of your changes in the Title above -->

## Description

- Update pypi upload action, which was failing due to an incorrect
version of Twine.
- Address a change to the `pyproject.toml` spec, which raised a warning
on dist ci
- Deprecate Python3.8, which is incompatible with the changes to the
pyproject.toml spec


## Types of Changes
<!-- Please select all items that apply, either now or after creating
the pull request: -->
- [ ] Documentation update
- [x] Bug fix
- [ ] New feature
- [ ] Breaking change<sup>1</sup>

<sup>1</sup>The change breaks (or has the potential to break) existing
functionality and should be merged into the `breaking` branch

## Checklist:
<!-- Please select all items that apply either now or after creating the
pull request. -->
- [x] I am familiar with the [Development
Guidelines](https://github.com/glotzerlab/parsnip/blob/main/doc/source/development.rst)
- [x] The changes introduced by this pull request are covered by
existing or newly introduced tests.
- [x] I have updated the
[changelog](https://github.com/glotzerlab/parsnip/blob/main/ChangeLog.rst)
and added my name to the
[credits](https://github.com/glotzerlab/parsnip/blob/main/doc/source/credits.rst).

Author: janbridley

.github/workflows/CI.yaml

@@ -27,25 +27,25 @@ jobs:
       runs-on: ${{ matrix.runs-on }}
       requirements-file: ".github/requirements-${{ matrix.python-version }}.txt"
 
-  run-tests-legacy-python:
-    needs: run-tests-modern-python # Wait until tests pass on python 3.9+
-    strategy:
-      fail-fast: false # Legacy versions are much less stable - run tests independently
-      matrix: # Code works on py3.6, but type annotations are broken
-        python-version: ["3.8"]
-        runs-on: ["ubuntu-22.04", "macos-14"]
-    uses: ./.github/workflows/run_tests.yaml
-    with:
-      python-version: ${{ matrix.python-version }}
-      runs-on: ${{ matrix.runs-on }}
-      requirements-file: ".github/requirements-${{ matrix.python-version }}.txt"
+  # run-tests-legacy-python:
+  #   needs: run-tests-modern-python # Wait until tests pass on python 3.9+
+  #   strategy:
+  #     fail-fast: false # Legacy versions are much less stable - run tests independently
+  #     matrix: # Code works on py3.6, but type annotations are broken
+  #       python-version: ["3.8"]
+  #       runs-on: ["ubuntu-22.04", "macos-14"]
+  #   uses: ./.github/workflows/run_tests.yaml
+  #   with:
+  #     python-version: ${{ matrix.python-version }}
+  #     runs-on: ${{ matrix.runs-on }}
+  #     requirements-file: ".github/requirements-${{ matrix.python-version }}.txt"
 
   run-tests-windows:
     needs: run-tests-modern-python
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.13"]
+        python-version: ["3.9", "3.13"]
         runs-on: ["windows-latest"]
     uses: ./.github/workflows/run_tests.yaml
     with:

.github/workflows/pypi-test-and-publish.yaml

@@ -26,7 +26,7 @@ jobs:
     - name: Install pypa/build
       run: python3 -m pip install build --user
     - name: Build a binary wheel and a source tarball
-      run: python3 -m build
+      run: PYTHONWARNINGS=error python3 -m build
     - name: Store the distribution packages
       uses: actions/[email protected]
       with:
@@ -55,6 +55,7 @@ jobs:
         repository-url: https://test.pypi.org/legacy/
         verbose: true
         skip-existing: true
+        verify-metadata: true
 
   publish-to-pypi:
     name: Publish to PyPI
@@ -74,4 +75,4 @@ jobs:
         name: python-package-distributions
         path: dist/
     - name: Publish to PyPI
-      uses: pypa/[email protected].2
+      uses: pypa/[email protected].4

changelog.rst

@@ -4,6 +4,18 @@ Changelog
 The format is based on `Keep a Changelog <http://keepachangelog.com/en/1.1.0/>`__.
 This project adheres to `Semantic Versioning <http://semver.org/spec/v2.0.0.html>`__.
 
+v0.3.1 - 2025-07-16
+-------------------
+
+Changed
+~~~~~~~
+- Source of ``LICENSE`` file in ``pyproject.toml`` to meet the change in Python spec.
+- Test and Publish CI now fails on warning, allowing for easier debugging.
+
+Removed
+~~~~~~~
+- Support for Python 3.8, which is incompatible with the changes to ``pyproject.toml``
+
 v0.3.0 - 2025-07-16
 -------------------
 

pyproject.toml

@@ -8,7 +8,7 @@ version = "0.3.0"
 requires-python = ">=3.7"
 description = "Minimal library for parsing CIF & mmCIF files in Python."
 readme = "README.rst"
-license = { file = "LICENSE" }
+license-files = ["LICENSE"]
 authors = [
     {name = "Jen Bradley", email = "[email protected]"},
 ]