cd ~/Applications/Slicer.app/Contents/bin
Use PythonSlicer to call pip to install external packages, for instance:
./PythonSlicer -m pip install scikit-image
cd ~/Applications/Slicer.app/Contents/bin
Use PythonSlicer to call pip to install external packages, for instance:
./PythonSlicer -m pip install scikit-image