Upgrade setup-python and use cache

Author: rayluo

.github/workflows/python-package.yml

@@ -39,9 +39,10 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
+        cache: 'pip'
     - name: Install Linux dependencies for Python 2
       if: ${{ matrix.os == 'ubuntu-latest' && matrix.python-version == '2.7' }}
       run: |
@@ -52,16 +53,10 @@ jobs:
       run: |
         sudo apt update
         sudo apt install python3-dev libgirepository1.0-dev libcairo2-dev gir1.2-secret-1 gnome-keyring
-    - name: Install PyGObject on Linux
-      if: ${{ matrix.os == 'ubuntu-latest' }}
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install pygobject
     - name: Install Python dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install pylint tox pytest
-        pip install .
+        pip install -r requirements.txt
     - name: Lint
       if: ${{ matrix.lint == 'true' }}
       run: |
@@ -100,9 +95,10 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python 3.9
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: 3.9
+        cache: 'pip'
     - name: Build a package for release
       run: |
         python -m pip install build --user

requirements.txt

@@ -0,0 +1,7 @@
+## Github actions/setup-python might need a requirements.txt to cache dependencies
+# https://github.com/actions/setup-python?tab=readme-ov-file#caching-packages-dependencies
+pygobject; sys_platform == 'linux'
+pylint
+tox
+pytest
+-e .