PDF Arranger fails to start due to user site packages

[David Auer]

Hello,
I'm one of the upstream maintainers of PDF Arranger and we got some complaints from ubuntu users which were unable to start the apt/deb package in ubuntu 22.04. This is most likely due to incompatible pikepdf versions which the users installed via pip. To mitigate this, I suggest you patch the /usr/bin/pdfarranger entry script to add a `-s` flag (better yet `-sP` as soon as the Python version supports it) to the python interpreter call in the first line (shebang). This should prevent python to load incompatible module versions from the home directory. I do not have a solutions for users which installed stuff via "sudo pip", I guess they just made a mistake using their admin privileges which we can not work around.

From my point of view it would be much better if users would get more recent versions of pikepdf (>= 6 should be enough) and PDF Arranger (the newer the better) but that might not be possible with a LTS version. (We got a few bug reports for stuff that has been fixed for a long time upstream and newer PDF Arranger versions are compatible with newer pikepdf versions users might accidentally install.)

Thanks for your work as package mantainer and let me know if I can be of assistance.

David

To the reports: https://github.com/pdfarranger/pdfarranger/discussions/1017