Worked on the aspect-build/rules_py repository to enhance the stability of Python package management by addressing a bug related to wheel hash handling in lockfiles. Developed logic in Python and Bash to automatically generate hashes for wheels missing this information, ensuring all lockfile entries are validated and reducing the risk of build-time failures. Added comprehensive tests to verify the system’s behavior with hashless wheels, preventing runtime errors and improving reliability in dependency resolution. This work focused on robust package management and testing practices, contributing to smoother CI/CD processes and minimizing upstream breakages in the rules_py build environment.