Do not use dist-packages

[ubitux]

Python's dist-packages directory is debian specific and does not work on any other Linux distribution. The correct directory is site-packages.

Also, the correct directory for site-packages is not python3 but python${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}.

Unless these changes are made, no python import can work.

This issue is present in all other repositories.

[Ghostkeeper]

The issue pertains to this line of code:

Uranium/CMakeLists.txt

Line 58 in 43abd0f

install(DIRECTORY UM DESTINATION lib/python${PYTHON_VERSION_MAJOR}/dist-packages)

However, we know that it also works on Arch. In fact, the guy who wrote that line of code works on Arch (though he obviously works from source so things may be different until he tests the actual build). In the commit he mentions that it is meant to improve something for Debian though. @awhiemstra, do you know why dist-packages was used?

[ubitux]

It doesn't work on Arch, the PKGBUILD files patch the CMakeLists.txt with a sed to correct this. This only works on Debian-like systems.

[awhiemstra]

No indeed it does not, I just never really bothered with it since I use a custom pythonpath anyway when doing development.

Note that we already fixed this for Arcus: https://github.com/Ultimaker/libArcus/blob/master/CMakeLists.txt , we should do something similar here.

[Ghostkeeper]

Our product owner just closed this for being inactive for 3 months.