adding strategy for python versions

.github/workflows/build.yml

@@ -7,6 +7,10 @@ jobs:
 
     runs-on: ubuntu-22.04
 
+    strategy:
+      matrix:
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+
     steps:
     - uses: actions/[email protected]
 
@@ -34,20 +38,28 @@ jobs:
         cp -R mmtf-cpp/include/mmtf* include/
 
     - name: Build
+      with:
+        python-version: ${{ matrix.python-version }}
       run: |
         pip install --upgrade pip
         pip install -v --config-settings testing=True '.[dev]'
       env:
         DEBUG: 1
 
     - name: Test
+      with:
+        python-version: ${{ matrix.python-version }}
       run: |
         pymol -ckqy testing/testing.py --run all
 
   build-Windows:
 
     runs-on: windows-latest
 
+    strategy:
+      matrix:
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+
     env:
       CONDA_ROOT: ${{github.workspace}}\..\tmp\miniforge
       MINIFORGE_EXEC: ${{github.workspace}}\..\tmp\miniforge.exe
@@ -83,11 +95,15 @@ jobs:
 
     - name: Build PyMOL
       shell: cmd
+      with:
+        python-version: ${{ matrix.python-version }}
       run: |
         CALL %CONDA_ROOT%\\Scripts\\activate.bat
         pip install -v --config-settings testing=True .[dev]
 
     - name: Test
+      with:
+        python-version: ${{ matrix.python-version }}
       shell: cmd
       run: |
         CALL %CONDA_ROOT%\\Scripts\\activate.bat
@@ -97,6 +113,10 @@ jobs:
 
     runs-on: macos-latest
 
+    strategy:
+      matrix:
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+
     env:
       CONDA_ROOT: "/tmp/miniforge"
 
@@ -119,12 +139,16 @@ jobs:
         cp -R msgpack-c/include/msgpack* ${CONDA_ROOT}/include/
 
     - name: Build PyMOL
+      with:
+        python-version: ${{ matrix.python-version }}
       run: |-
         export MACOSX_DEPLOYMENT_TARGET=12.0
         export PATH="$CONDA_ROOT/bin:$PATH"
         pip install -v --config-settings testing=True '.[dev]'
 
     - name: Test
+      with:
+        python-version: ${{ matrix.python-version }}
       run: |-
         export PATH="$CONDA_ROOT/bin:$PATH"
         pymol -ckqy testing/testing.py --run all