Migrate package metadata to pyproject.toml, remove setup.py

Author: ilyazub

.github/workflows/ci.yml

@@ -33,10 +33,10 @@ jobs:
     - name: Run tests
       run: pytest -k "not example"
       env:
-        API_KEY: ${{secrets.API_KEY}}
+        API_KEY: ${{ secrets.API_KEY }}
 
     - name: Run example tests
       if: matrix.python-version == '3.13'
       run: pytest -k "example"
       env:
-        API_KEY: ${{secrets.API_KEY}}
+        API_KEY: ${{ secrets.API_KEY }}

.github/workflows/release.yml

@@ -71,14 +71,18 @@ jobs:
           name: dist
           path: dist/
 
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
+
       - name: Create GitHub Release
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           GH_REPO: ${{ github.repository }}
         run: gh release create ${{ github.ref_name }} dist/* --generate-notes
 
       - name: Install twine
-        run: pip install twine
+        run: pip install --upgrade pip twine
 
       - name: Publish to PyPI
         env:
@@ -91,3 +95,47 @@ jobs:
           TWINE_USERNAME: ${{ github.repository_owner }}
           TWINE_PASSWORD: ${{ secrets.GITHUB_TOKEN }}
         run: twine upload --repository-url https://pypi.pkg.github.com/${{ github.repository_owner }} dist/*
+
+  smoke-test:
+    name: Smoke test published package
+    needs: [publish]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
+
+      - name: Wait for PyPI availability
+        run: |
+          VERSION=${GITHUB_REF_NAME#v}
+          echo "Waiting for serpapi==$VERSION on PyPI..."
+          for i in $(seq 1 12); do
+            if pip index versions serpapi 2>/dev/null | grep -q "$VERSION"; then
+              echo "Available!"
+              exit 0
+            fi
+            echo "Attempt $i/12 — sleeping 10s..."
+            sleep 10
+          done
+          echo "Timed out waiting for PyPI propagation" && exit 1
+
+      - name: Install from PyPI
+        run: |
+          VERSION=${GITHUB_REF_NAME#v}
+          pip install "serpapi==$VERSION"
+
+      - name: Verify import and version
+        env:
+          API_KEY: ${{ secrets.API_KEY }}
+        run: |
+          VERSION=${GITHUB_REF_NAME#v}
+          python - <<PY
+import os
+import serpapi
+assert serpapi.__version__ == '$VERSION', f'Version mismatch: {serpapi.__version__} != $VERSION'
+print(f'OK: serpapi=={serpapi.__version__} installed successfully')
+client = serpapi.Client(api_key=os.environ["API_KEY"])
+results = client.search({"engine": "google", "q": "coffee"})
+assert results.get("organic_results"), "No organic results returned"
+print(f'OK: live search returned {len(results["organic_results"])} organic results')
+PY