Fix ptx file discovery in editable installs #14767
Merged
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Description
The behavior of editable installs changed when we transitioned to scikit-build-core, and it affects where the ptx files created during the build can be discovered. Editable installs no longer place built files directly alongside source files. Instead, Python's import machinery is leveraged to add built files to the search path. Since ptx files are not Python files, the loader logic isn't relevant, but we now need to ensure that we always search for the ptx files alongside built artifacts (namely Cython compiled modules) rather than Python source files. I'm guessing that nobody has encountered this yet due to preexisting build artifacts in their source directories.
Checklist