Worked on the python/cpython repository to enhance memory layout control in the Python ctypes API, focusing on low-level programming needs. Developed and integrated a new _align_ attribute for ctypes.Structure, enabling explicit memory alignment during structure packing and unpacking. This addition allows developers to specify alignment requirements directly, improving reliability and portability for native integrations and extensions. The work involved C programming for the core implementation, Python development for API integration, and documentation writing using reStructuredText to ensure clear communication of the new feature and its versioning. No major bugs were addressed during this period, with efforts concentrated on feature delivery.