I usually do a source build link with Intel-MKL when installing scipy with pip, but it seems that the build fails from scipy 1.4 If you wonder why, from scipy 1.4 to [pybind11](https: /) as stated in this issue /github.com/pybind/pybind11) was needed, so install it before the upgrade.
$ pip3 install pybind11
$ pip3 install --upgrade --no-binary :all: scipy
It's done.
$ pip3 freeze | grep scipy
scipy==1.4.1
See the official documentation (https://docs.scipy.org/doc/scipy-1.4.1/reference/building/index.html) for other requirements.