Parquet

The `parquet` library (parquet-python) is a pure-Python implementation for working with the Apache Parquet file format. As of its last update (version 1.3.1), it primarily offers read-only support for Parquet files, allowing users to extract data as JSON or TSV. The project explicitly states that performance has not been optimized and many features, including writing, are not implemented. Development appears to have ceased in 2017 on GitHub and the last PyPI upload was in 2020, indicating it is an unmaintained project.