CI: add pypi package check

partially addresses #62

.github/workflows/CI.yaml

@@ -78,3 +78,30 @@ jobs:
  flags: unittests
  fail_ci_if_error: true
 
+
+pypi_check:
+ if: "github.repository == 'alchemistry/alchemtest'"
+ runs-on: ubuntu-latest
+
+ steps:
+ - uses: actions/checkout@v2
+
+ - name: Setup python
+ uses: actions/setup-python@v2
+ with:
+ python-version: 3.9
+
+ - name: install_tools
+ run: |
+ python -m pip install setuptools twine
+ 
+ - name: build alchemtest source dist
+ run: |
+ python setup.py sdist
+ 
+ - name: check package build sdist
+ run: |
+ DISTRIBUTION=$(ls -t1 dist/alchemtest-*.tar.gz | head -n 1)
+ test -n "${DISTRIBUTION}" || { echo "no distribution dist/alchemtest-*.tar.gz found"; exit 1; }
+ echo "twine check $DISTRIBUTION"
+ twine check $DISTRIBUTION