What made it click for me is "Python packaging" means "how to install everything that I want to use from Python."
I wouldn't have considered "how to get BLAS onto a system" to be a "Python packaging" issue, but for people who want to rely on it via scipy/numpy/whatever, it is.
I wouldn't have considered "how to get BLAS onto a system" to be a "Python packaging" issue, but for people who want to rely on it via scipy/numpy/whatever, it is.