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Hi @matthewfeickert @agoose77 so, (with the stressed disclaimer that i still lack a lot of knowledge about the python ecosystem) i found these bits of info:

  1. RPATH vs RUNPATH : RPATH is search before LD_LIBRARY_PATH while RUNPATH after it.
    so i would say, that for python bindings RPATH should be used and pointing to the xrootd binary libs from $(python3 -m site --user-site)/pyxrootd/lib64 lib64 on rhel family, lib on debian family. this way, the libraries will always be found and we can avoid any problems given by LD_LIBRARY_PATH (the python bindings come as a package, we should not risk any mixing of some other versions)

  2. i'm not sure how $ORIGIN is supposed to work as RUNPATH, as this is the location of an executable, but what is the executable in this case?

  3. wheel vs egg : before some fancy/new/latest building tools (pybind11/scikit-build) that would be required to work on centos7/python3.6 i think that we should establish why is egg used instead of wheel .. from what i see in packaging/wheel/publish.sh a sdist wheel should be created not an egg one .. so, anyone any idea what is going on?

Thanks a lot!

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