Licensing Ladybug for FreeCAD

[Harvie]

Hello,
i am discussing use of ladybug with FreeCAD developers. It seems that both Ladybug and FreeCAD are free open-source projects, both trying to maximize usefullnes while protecting freedom of its users by implementing sensible license policy of their respective choices. However there seems to be some incompatibility, so i wanted to open discussion about this topic and find reasonable solution where everyone is happy.

Current state:

• FreeCAD implements call to ladybug-core pip library
• It's ok when FreeCAD is installed through package manager and pulls ladybug-core as dependency
• However it seems to be problematic to include ladybug in freecad's AppImage. See:
  • Add ladybug python module, fixes #411 FreeCAD/FreeCAD-Bundle#412
  • [Problem] Ladybug python module missing in AppImage FreeCAD/FreeCAD-Bundle#411

I find that kinda funny, because as far as end-user is concerned, the usecase is exactly the same, but outcome is different depending on which way is used to install FreeCAD. Do you think it would be possible to get dual-license or extemption for FreeCAD to re-distribute Ladybug in AppImage? Can you suggest any other way to solve this issue?

Thanks