Great Expectations

Great Expectations (GX) is an open-source Python library for data quality. It helps data teams validate, document, and profile their data to ensure quality and consistency throughout data pipelines. It allows users to define 'Expectations' (assertions about data), run validation tests, and generate human-readable data quality reports called 'Data Docs'. The library is actively maintained with frequent releases and supports Python versions 3.10 through 3.13, with experimental support for 3.14.