Update pythonpackage.yml

Author: Jiezhi

.github/workflows/pythonpackage.yml

@@ -2,26 +2,25 @@ name: Python package
 
 on: [push]
 
+permissions:
+  contents: read
+
 jobs:
   build:
 
     runs-on: ubuntu-latest
-    strategy:
-      max-parallel: 4
-      matrix:
-        python-version: [3.10]
 
     steps:
-    - uses: actions/checkout@v1
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
+    - uses: actions/checkout@v3
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v3
       with:
-        python-version: ${{ matrix.python-version }}
+        python-version: "3.10"
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -r requirements.txt
+        pip install pytest
+        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Test with pytest
       run: |
-        pip install pytest
         pytest