repairwheel

And then of course cibuildwheel builds binary wheels for Win/Mac/Lin and manylinux wheels for libc and/or musl libc. repairwheel, auditwheel, delocate, and delvewheel bundle shared library dependencies (.so and DLL) into the wheel, which is a .zip file with a .whl extension and a declarative manifest that doesn't require python code to run as the package installer. https://news.ycombinator.com/item?id=42347468 repairwheel: https://github.com/jvolkman/repairwheel : > It includes pure-python replacements for external tools like patchelf, otool, install_name_tool, and codesign, so no non-python dependencies are required.

I got into cross-compiling Python wheels (e.g., building macos wheels on linux and vice versa). Zig's `zig cc` does much of the heavy lifting, but one step in building a portable wheel is the "repair" process which vends native library dependencies into the wheel, necessitating binary patching (auditwheel does this for linux, delocate for macos). I wanted to be able to do this cross platform, so I re-implemented ELF patching and Mach-O patching and adhoc signing in Python, and wrapped them into a tool called repairwheel: https://github.com/jvolkman/repairwheel

I'll plug some work I've been doing to (attempt to) enable cross compilation of Python wheels. I put together a small example [1] that builds the zstandard wheel, and can build macos wheels on linux and linux wheels on macos using zig cc. macos wheels must still be adhoc signed (codesign) and binary patched (install_name_tool), so I re-implemented those functions in Python [2]. [1] https://github.com/jvolkman/bazel-pycross-zstandard-example [2] https://github.com/jvolkman/repairwheel/tree/main/src/repair...