# Toblerity/Fiona

Fiona reads and writes geographic data files

Repository: https://github.com/Toblerity/Fiona
Canonical: https://ross.abutalabs.com/products/fiona
Homepage: https://fiona.readthedocs.io/
Language: Python
License: BSD-3-Clause
License Family: permissive
Topics: python, gis, vector, gdal, ogr, cli, cython
Last push: 2025-02-20T23:53:44+00:00

## Health v2 (maintenance only)
Score: 37/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 7, release rhythm 40, longevity 100
- inputs: {"age_days": 5359, "days_push": 559, "days_rel": 716, "gap_med": 12, "n_releases_24m": 2}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1248, forks 219 (observed 2026-08-28T04:04:07.841733+00:00)

## What it is
Fiona is a Python library (with a CLI) for reading and writing vector geographic data in formats like Shapefile and GeoPackage, built on top of GDAL/OGR. It streams features modeled on GeoJSON through file-like Collection objects for productive, readable geospatial I/O code.

## Use cases
- read and write shapefiles in python
- convert geospatial vector data between formats
- read geopackage features into python
- write geojson to a gis file format
- batch process gis vector files from the command line
- read cloud-stored geospatial data files

## When to choose
- you need simple, Pythonic read/write access to vector GIS formats without dealing with raw GDAL bindings
- you want to stream features one at a time from large files or cloud/virtual filesystems
- you plan to combine it with Shapely for geometry transformations

## When to avoid
- you need raster data processing rather than vector features
- you require GDAL format drivers omitted from the pip wheels, such as GML, and cannot build from source or use conda
- you need spatial analysis methods on features - Fiona features are plain data classes, so use GeoPandas or Shapely instead

## Facets
- artifact type: library
- maturity: active
- function: file-system, cli, parser
- domain: developer-tools
- platform: python, cli, cross-platform
- tags: gis, gdal, ogr, shapefile, geopackage, vector-data, geojson, cython, geospatial, data-engineering

## Member repositories
- Toblerity/Fiona (main) score 37

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:07.841733+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T05:07:50.459416+00:00, confidence not recorded.
  - readme: https://github.com/Toblerity/Fiona (fetched 2026-08-28T04:04:07.841733+00:00, sha 19420349d855)
- Data as of 2026-08-30T08:39:29.467469+00:00.