Improved GitHub actions build.

.github/workflows/packaging.yml

@@ -47,7 +47,7 @@ jobs:
           ref: ${{ github.ref }}
 
       - name: Set up Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ env.PYTHON_VERSION }}
 
@@ -62,32 +62,41 @@ jobs:
       - name: Build sdist
         run: python -m build --sdist
 
+      - name: Find sdist filename
+        shell: bash
+        id: find_sdist_filename
+        run: echo "filename=$(ls dist/*.tar.gz)" >> $GITHUB_OUTPUT
+
       - name: Install the wheel
-        run: python -m pip install -f dist pymonocypher
+        run: python -m pip install ./dist/${{ steps.find_sdist_filename.outputs.filename }}
 
       - name: Run python unit tests
         run: pytest
 
       - name: Upload python source package
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: sdist
           path: dist/*.tar.gz
           if-no-files-found: error
 
   build_wheels:
-    name: Build on ${{ matrix.os }}
+    name: Build on ${{ matrix.os }}, python=${{ matrix.python_version }}
     needs:
       - build_sdist
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
         os: ["ubuntu-latest", "windows-latest", "macos-latest"]
+        python_version: ["cp39", "cp310", "cp311", "cp312"]
+        exclude:
+          - os: "macos-latest"
+            python_version: "cp39"
 
     steps:
       - name: Download sdist
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: sdist
           path: dist/
@@ -97,24 +106,32 @@ jobs:
         id: find_sdist_filename
         run: echo "filename=$(ls dist/*.tar.gz)" >> $GITHUB_OUTPUT
 
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+
+      - name: Install cibuildwheel
+        run: python -m pip install cibuildwheel==2.17.0
+
       - name: Build wheels
-        uses: pypa/[email protected]
         env:
           CIBW_ARCHS_MACOS: universal2
           CIBW_ARCHS_WINDOWS: native
           CIBW_ARCHS_LINUX: native
           # skip PyPy: Cython only supports CPython
           # skip musllinux: build takes too long with default os images.
           CIBW_SKIP: 'pp* *musllinux*'
+          CIBW_BUILD: '${{ matrix.python_version }}-*'
           CIBW_TEST_REQUIRES: pytest
           CIBW_TEST_COMMAND: pytest {package}/test
         with:
           package-dir: ${{ steps.find_sdist_filename.outputs.filename }}
 
       - name: Upload python wheels
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
-          name: wheels
+          name: python_wheel-${{ matrix.os }}-${{ matrix.python_version }}
           path: wheelhouse/*.whl
           if-no-files-found: error
 
@@ -131,15 +148,16 @@ jobs:
 
     steps:
       - name: Download python sdist artifact
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: sdist
           path: dist/
 
       - name: Download python wheel artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
-          name: wheels
+          pattern: python_wheel-*
+          merge-multiple: true
           path: dist/
 
       - name: Display artifacts

setup.py

@@ -69,6 +69,7 @@
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
+        'Programming Language :: Python :: 3.12',
         'Programming Language :: C',
     ],