try multiple python version

Author: EED85

.github/workflows/pytests.yml

@@ -6,6 +6,9 @@ on:
 jobs:
     run:
       runs-on: ubuntu-latest
+      strategy:
+        matrix:
+          python-version: ["3.11", "3.12", "3.13"]
       steps:
         - name: Checkout code
           uses: actions/checkout@v2
@@ -16,7 +19,8 @@ jobs:
         - name: Setup Python
           uses: actions/setup-python@v5
           with:
-            python-version-file: .python-version
+            # python-version-file: .python-version
+            python-version: ${{ matrix.python-version }}
         - name: Install dependencies
           run: |
             python -m pip install --upgrade pip