Developed a usability enhancement for partitioned assets in the dagster-io/dagster repository by introducing a get_partition_key helper to the TimeWindowPartitionsDefinition class. This feature enables seamless conversion of date, datetime, or string inputs into standardized partition keys, reducing manual formatting and minimizing the risk of mis-keying. The implementation focused on robust Python development practices, including comprehensive testing to cover various input types and edge cases. By automating partition key generation, the work streamlines onboarding for asset authors and improves consistency across time-windowed workflows. The contribution included clear documentation and thorough test coverage, demonstrating attention to software quality and maintainability.