CI with Python setup and tests

.gitea/workflows/ci.yml

@@ -5,5 +5,18 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - name: Hello
+      - name: Checkout
-        run: echo "Hello World"
+        run: pwd && ls -la
+
+      - name: Setup Python
+        run: |
+          python3 -m pip install --upgrade pip
+          python3 --version
+
+      - name: Install dependencies
+        run: |
+          pip3 install -r requirements.txt
+          pip3 install pytest
+
+      - name: Run tests
+        run: pytest3 tests/ -v