Force py2.7 into env

.github/workflows/test.yml

@@ -23,6 +23,20 @@ jobs:
       with:
         fetch-depth: 0
 
+    - name: Set up Python 2.7
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y software-properties-common
+        sudo add-apt-repository universe
+        sudo apt-get install -y python2
+        python2 --version
+
+    - name: Install pip for Python 2.7
+      run: |
+        curl https://bootstrap.pypa.io/pip/2.7/get-pip.py -o get-pip.py
+        sudo python2 get-pip.py
+        python2 -m pip --version
+
     - name: Setup Python environment
       uses: actions/setup-python@v2
       with: