Merge pull request #431 from PyAr/arch_integtest_py39

Adding tests for arch with py39

.github/workflows/integtests.yaml

@@ -11,7 +11,8 @@ jobs:
   archlinux:
     runs-on: ubuntu-latest
     container:
-      image: archlinux:latest
+      # Use https://github.com/gilgamezh/archlinux-python39 to save the python build time
+      image: gilgamezh/archlinux-python39:latest
       volumes:
         - ${{ github.workspace }}:/fades
     steps:
@@ -21,12 +22,16 @@ jobs:
           fetch-depth: 0
       - name: Install dependencies
         run: |
-          pacman -Sy --noconfirm python3 python-setuptools
+          pacman -Suy --noconfirm python3 python-setuptools
       - name: Simple fades run
         run: |
           cd /fades
           bin/fades -v -d pytest -x pytest --version
-      # XXX Facundo 2024-03-01: "using a different Python" is missing here because Arch is hard
+      - name: Using a different Python
+        run: |
+          pacman -S --noconfirm python-virtualenv
+          export TEST_PYTHON_VERSION=3.9
+          python bin/fades -v --python=python3.9 -d pytest -x pytest -v tests/integtest.py
 
   fedora:
     runs-on: ubuntu-latest