---
id: eccodeslib
version: "2.48.0.26"
license: unclear
license_treatment: unclear
maintenance: active
---

# eccodeslib — "eccodeslib"

License: unclear · Maintenance: active · Downloads: 973.4K/mo

## What it is and what it does

eccodeslib is a Python wrapper around ECMWF's ecCodes library, a mature tool for reading and writing meteorological data in standard WMO formats. It exposes a key/value interface to decode GRIB (gridded binary) and BUFR (binary universal form for the representation of meteorological data) messages, as well as WMO GTS headers. The package is designed for climate scientists, weather modelers, and data engineers who work with operational forecast data, reanalysis products, or observational records stored in these formats.

The package ships as pre-built wheels for multiple Python versions on macOS and Linux, but installation requires the underlying ecCodes C library and its runtime dependencies. It is actively maintained by ECMWF and classified as Graduated software under their maturity guidelines, indicating production readiness.

Use it for:

- Ingest GRIB files from weather forecast models or reanalysis datasets into Python for analysis.
- Decode BUFR observation records from meteorological stations or satellite platforms.
- Extract specific meteorological fields using the key/value interface.
- Convert between GRIB and BUFR formats or validate message structure in data pipelines.
- Build climate or weather analysis workflows that depend on WMO-standard data formats.

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

eccodeslib provides Python bindings to decode and encode meteorological data in GRIB, BUFR, and WMO GTS formats, wrapping the ECMWF ecCodes C library.

Yes, if you work with GRIB or BUFR meteorological data and your system can satisfy the ecCodes C library dependency. The package is actively maintained, widely used, carries no known vulnerabilities, and is officially Graduated by ECMWF. Verify that the license treatment (Apache 2.0 per the description, but unclear in metadata) and system-level installation requirements fit your environment before committing.

## Install

pip install eccodeslib
uv add eccodeslib
poetry add eccodeslib

## Installing eccodeslib

Before you install: Medium install friction: wheels are available for multiple Python versions on macOS and Linux, but the package depends on eckitlib and wraps a compiled C library, so installation may require system-level dependencies. Actively maintained with a release 28 days old.

License in practice: License treatment is unclear in the metadata; the description states Apache Licence Version 2.0, but SPDX and raw license fields are absent from the package record, so verify the actual license terms before use in proprietary or restricted contexts.

Quickstart:

pip install eccodeslib

import eckitlib
# Use eckitlib to work with meteorological data formats

Requires the underlying ecCodes C library to be installed on the system; Python alone is insufficient. Consult ECMWF installation documentation for your platform.

Verify before relying:

- Whether eckitlib is a public PyPI package or an internal ECMWF dependency that may complicate installation.
- Exact Python version support (requires_python is unspecified in metadata).
- Whether the package includes pre-built ecCodes binaries or expects a system installation.
- Concrete usage examples and API surface for decoding GRIB and BUFR messages.

## Package facts

- License: not declared (unclear)
- Python support: unspecified
- Install friction: medium
- Maintenance: active
- Downloads: 973.4K/month (top 5,000 on PyPI)
- Known vulnerabilities: none known

## Tags

grib decoder python, bufr format parsing, meteorological data formats, wmo message decoding, weather data grib bufr, ecmwf eccodes python, climate model data access, meteorology, data-format, grib-bufr

[View on SkillFed](https://skillfed.io/packages/eccodeslib) · [View on PyPI](https://pypi.org/project/eccodeslib/)