Worked on the bazelbuild/rules_rust repository to deliver an upgrade to the Python bindings, focusing on enhancing documentation and maintainability. Upgraded the PyO3 dependency to version 0.29.0, which enabled automatic generation of doc comments in Python stubs, improving the quality and clarity of generated documentation for developers. Removed legacy cross-compilation patches and eliminated a lingering cross-build-script dependency, reducing manual maintenance and resolving sandbox path issues. The work leveraged Bazel for build orchestration and involved both Python and Rust, aligning with upstream changes in PyO3. No major bugs were addressed, with efforts concentrated on feature delivery and long-term maintainability.