parquet-metadata

What it is and what it does

Parquet-metadata is a lightweight command-line utility that extracts and displays metadata from Parquet files in a tab-separated format. It shows file-level information like creation tool and row count, then breaks down each row group with column-level details including data type, compression method, encoding, compressed and uncompressed sizes, and min/max statistics.

The tool is designed as a simple inspection utility for developers and data engineers who need to understand the structure and properties of Parquet files without loading the data itself. It has no runtime dependencies and installs quickly, making it a minimal addition to your toolkit for Parquet file analysis.

Use it for:

• Inspect compression ratios and encoding choices in Parquet files to understand storage efficiency
• Verify row group structure and column statistics before processing large Parquet datasets
• Debug data pipeline issues by examining file metadata without reading the actual data
• Check column types and value ranges (min/max) to validate data quality before analysis

Worth the install?

AI-flagged interpretation of the facts on this page — verify before relying

Parquet-metadata is a command-line tool that reads and displays structural and statistical metadata from Parquet files, including row group information, column types, compression settings, and value statistics.

No, unless you have a specific need for this exact tool and can accept that it has not been maintained since 2018. The package works for basic Parquet inspection, but there is no active development, and compatibility with newer Parquet features or Python versions is uncertain. Consider alternatives that are actively maintained if you need reliable, long-term support.

Install

parquet-metadata on PyPI

pip install parquet-metadata

uv add parquet-metadata

poetry add parquet-metadata

Installing parquet-metadata

Before you install

Installation is straightforward with no runtime dependencies, but the package has been abandoned since its only release in 2018 and last commit in 2021. No updates have been made in nearly three years.

License in practice

Licensed under Apache License (permissive), so you can use, modify, and distribute the package freely with minimal restrictions.

Quickstart

pip install parquet-metadata
parquet-metadata parquet.file

Verify before relying

• Whether the tool works with modern Parquet file formats and compression codecs released after 2021
• Compatibility with current Python versions and whether it runs on Python 3.9+

Package facts

Evidence: parquet_metadata-0.0.1-py3-none-any.whl

Tags

More Utilities packages