set -ex pip check python -c "import contourpy as c; print(c.contour_generator(z=[[0, 1], [2, 3]]).lines(0.9))" python -c "from contourpy.util import build_config; from pprint import pprint; pprint(build_config())" python -c "import platform, sys; print(sys.version, platform.uname())" exit 0