some changes in cicd

.gitlab-ci.yml

-image: python:3.9-slim
+image: python:3.8-slim
 
 # Change pip's cache directory to be inside the project directory since we can
 # only cache local items.
@@ -11,17 +11,34 @@ cache:
   paths:
     - .cache/pip
 
-before_script:
-  - python -V               # Print out python version for debugging
-  - pip install virtualenv
-  - virtualenv venv
-  - source venv/bin/activate
+stages:
+  - test
 
+.virtualenv_template: &virtualenv_definition |
+  python -V
+  python3 -m venv venv
+  source venv/bin/activate
+  pip install -U pip setuptools wheel setuptools_scm
+  pip install pytest
 
-test-python3.9:
-  script:
-    - pip install pytest
-    - pytest ./tests/test_general.py
-    - pip install flake8
-    - flake8 . 
+
+test-python3.8:
+    stage: test
+    script:
+        - *virtualenv_definition
+        - pytest ./tests/test_general.py
+
+# before_script:
+#   - python -V               # Print out python version for debugging
+#   - pip install virtualenv
+#   - virtualenv venv
+#   - source venv/bin/activate
+
+
+# test-python3.8:
+#   script:
+#     - pip install pytest
+#     - pytest ./tests/test_general.py
+#     - pip install flake8
+#     - flake8 .