Package: libboost-python1.63-dev Version: 1.63.0+dfsg-1.1 I am developing for Python 3 and I needed boost development files for Python. To my surprise installing libboost-python1.63-dev wants to install also whole Python 2 installation. I find this problematic because I do not need it and it also introduces complexity later on for me because other tools then find both Python 2 and Python 3 available and sometimes get confused which one I prefer to use.
I would suggest the package is split for Python 2 and Python 3.