Anders Bogsnes enhanced the robustness of the apache/iceberg-python repository by implementing an import check for the optional dependency pyiceberg_core within the pyarrow_transforms module. Using Python and focusing on error handling and unit testing, Anders introduced logic that detects when pyiceberg_core is missing and provides clear, actionable error messages to users. This approach prevents cryptic crashes and guides users toward resolving missing dependencies, improving both stability and onboarding for the project. The work addressed a specific pain point for iceberg-python users, demonstrating thoughtful engineering in dependency management and user experience, though it was limited in scope to a single feature.