clean_python clean distclean
pip install -v -e .
coverage run `which nose2`
+ lcov --capture --no-external --directory . --output-file build/coverage.info
coverage_report: coverage
- lcov --capture --no-external --directory . --output-file build/coverage.info
genhtml build/coverage.info --output-directory lcov_html
mkdir -p gcovr_html/
gcovr -r . --html --html-details \