Add pip check to release and pip & twine check to CIs

.github/workflows/ci.yml

@@ -24,6 +24,7 @@ jobs:
       CI: 'True'
       PYTHON_VERSION: ${{ matrix.python-version }}
       USE_CONDA: ${{ matrix.use-conda }}
+      SKIP_PIP_CHECK: ${{ matrix.skip-pip-check }}
       PYQT5_VERSION: ${{ matrix.pyqt5-version }}
       PYQT6_VERSION: ${{ matrix.pyqt6-version }}
       PYSIDE2_VERSION: ${{ matrix.pyside2-version }}
@@ -43,6 +44,7 @@ jobs:
           special-invocation: 'xvfb-run --auto-servernum '
         - python-version: '3.6'
           use-conda: 'No'
+          skip-pip-check: 'true'  # Pytest packaging issue on Python 3.6 defaults channel
           pyside2-version: 5.12.0  # 5.12.1-5.12.6 fails on collection/segfaults on patch test
         - os: ubuntu-latest
           python-version: '3.6'
@@ -104,6 +106,5 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           cd qtpy  # Switch to test working dir per non-src-layout hack
-          python -m pip install --upgrade coveralls
           cat qtpy_basedir.txt
-          python -b -X dev -m coveralls --service=github --rcfile="../.coveragerc" --basedir="$(cat qtpy_basedir.txt)"
+          pipx run coveralls --service=github --rcfile="../.coveragerc" --basedir="$(cat qtpy_basedir.txt)"

.github/workflows/test.sh

@@ -43,7 +43,7 @@ fi
 
 # Build wheel of package
 git clean -xdf -e *.coverage
-pip install --upgrade build
+python -m pip install --upgrade build
 python -bb -X dev -W error -W ignore:::pyparsing -m build
 
 # Install package from built wheel
@@ -59,3 +59,8 @@ python -I -bb -X dev -W error -m pytest --cov-config ../.coveragerc --cov-append
 # Save QtPy base dir for coverage
 python -c "from pathlib import Path; import qtpy; print(Path(qtpy.__file__).parent.parent.resolve().as_posix())" > qtpy_basedir.txt
 cat qtpy_basedir.txt
+cd ..
+
+# Check package and environment
+pipx run twine check --strict dist/*
+pip check -v || ${SKIP_PIP_CHECK:-false}

RELEASE.md

@@ -42,6 +42,8 @@ To release a new version of QtPy on PyPI:
 
 * `python -bb -X dev -W error -m pip install dist/*.whl`
 
+* `pip check`
+
 * `python -bb -X dev -W error -m pytest qtpy/tests`
 
 * `python -bb -X dev -W error -m pip install -e .`