Hi, follow-up on my recent dependency mail, I was able to trace some dependencies: python3-weasyprint requires python3-FontTools python3-FontTools requires python3-sympy python3-sympy requires python3-mpmath >= 0.19 python3-sympy recommended python3-jupyter_ipython (comes from python3-ipython) python3-ipython recommended jupyter jupyter recommended jupyter-qtconsole jupyter-qtconsole requires python3-qtconsole = 5.2.1 python3-qtconsole requires python3-qt5 Looking at python-sympy in comaprison to https://packages.debian.org/sid/python3-sympy Debian lists the ipyton stuff under 'enhances', not even 'suggests' - which leads to the question, when to properly use recommends and suggests [1], and if not 'suggets may be the better approach here and there. Suggestions? Cheers Axel [1] https://en.opensuse.org/openSUSE:Build_Service_Tutorial#Create_Patterns