Samuel Lopez focused on improving error handling for DXF imports in the ansys/pyaedt repository, addressing a bug related to the ezdxf library. He implemented a robust Python-based solution that detects when ezdxf is not installed, logs a user-facing warning, and safely returns an empty list to prevent application crashes. To streamline development and testing, Samuel updated the project’s dependency management by including ezdxf in the pyproject.toml configuration. His work demonstrated careful attention to error handling and dependency management, ensuring the codebase remains stable and maintainable when optional libraries are missing, and providing a clear, traceable commit history.