Add twine-check-workflow.

.github/workflows/pypi-compatible.yml

@@ -0,0 +1,33 @@
+
+name: Test to see if package is compatible with PyPI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python 3.9
+      uses: actions/setup-python@v3
+      with:
+        python-version: '3.9'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install setuptools wheel twine
+    - name: Build
+      run: |
+        python setup.py sdist bdist_wheel
+    - name: Check
+      run: |
+        twine check dist/*

HISTORY.rst

@@ -2,6 +2,12 @@
 History
 =======
 
+0.3.2 (2022-05-02)
+------------------
+
+* Add workflow to check for package compatability with PyPI.
+  This should make sure that the issue with v0.3.0 does not occur again.
+
 0.3.1 (2022-05-02)
 ------------------