Meson and distutils ways of doing things

Old workflows (numpy.distutils based):

• python runtests.py

• python setup.py build_ext -i + export PYTHONPATH=/home/username/path/to/numpy/reporoot (and then edit pure Python code in NumPy and run it with python some_script.py).

• python setup.py develop - this is similar to (2), except in-place build is made permanently visible in env.

• python setup.py bdist_wheel + pip install dist/numpy*.whl - build wheel in current env and install it.

• pip install . - build wheel in an isolated build env against deps in pyproject.toml and install it. Note: be careful, this is usually not the correct command for development installs - typically you want to use (4) or pip install . -v --no-build-isolation.

New workflows (Meson and meson-python based):

• spin test

• pip install -e . --no-build-isolation (note: only for working on NumPy itself - for more details, see IDE support & editable installs)

• the same as (2)

• python -m build --no-isolation + pip install dist/numpy*.whl - see pypa/build.

• pip install .