During September 2025, Brandt focused on enhancing data handling robustness in the python/cpython repository by refactoring the raw data processing pipeline. He enforced consistent use of bytearray over bytes, addressing type-safety concerns and reducing the risk of data corruption in critical code paths. This work required careful code refactoring and cleanup across related issues, consolidating changes for maintainability and future extensibility. Utilizing his expertise in Python and software development, Brandt improved memory management and code clarity, making the raw data modules easier to review and audit. The result was a more reliable and maintainable foundation for future data-processing improvements.