On Mon, Sep 28, 2020 at 09:35:59AM +0330, Reza Alizadeh Majd wrote: > is there any rule that I missed to choose a dependency as an `input` or > as a `propageted-input` one? Hi, I’d say that you always need to declare `python-*` dependencies as `propagated-inputs`, unless it’s something required for building and testing the package, exclusively, in which case the package in question goes to `native-inputs`. As an aside, it’s the same for `r-*` packages. WŻ