Worked on the FreeCAD/FreeCAD repository to enhance code quality by removing unused imports, specifically targeting the elimination of redundant 'sys' imports from multiple files. This effort focused on code optimization and software maintenance using Python, ensuring that the codebase remained functionally unchanged while becoming cleaner and easier to maintain. The approach preserved runtime behavior and improved readability, laying a stronger foundation for future refactoring. All changes were carefully documented with clear commit messages to support traceability. No major bugs were addressed during this period, as the primary goal was to streamline the code and reduce unnecessary maintenance overhead.