reproj
Reproject shapely geometries
Decision gist · record as of 2026-08-14
Yes, if you work with individual shapely geometries and need frequent coordinate system transformations. The package genuinely simplifies a common task and has no security vulnerabilities. It is actively maintained, has low install friction, and uses a permissive license. The main caveat is its small ecosystem footprint (1 star, early beta status) — it is stable for its narrow purpose but not battle-tested at scale.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Low install friction with a pure-Python wheel and only two runtime dependencies (pyproj and shapely).
- Actively maintained with a recent release 75 days ago and ongoing repository activity.
License · maintenance · safety
BSD-3-Clause (permissive) — BSD-3-Clause is permissive; you can use this package freely in commercial and private projects with minimal restrictions beyond retaining the license notice.
last release 2026-05-31 (75 days) · last repo commit 2026-06-08 · 1 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 267,724 downloads/mo, #8,287 on PyPI
Alternatives
Verify before relying
pip install reproj
from reproj import reproj
utm_shape = reproj(wgs84_shape, 4326, 32630)- Whether the package handles edge cases like null geometries, invalid CRS codes, or mixed geometry types gracefully.
- Performance characteristics when reprojecting large geometry collections or complex shapes.
- Whether additional CRS formats beyond EPSG codes (e.g., WKT, proj strings) are supported.
What it is and what it does
Reproj is a minimal wrapper around pyproj and shapely that reduces the boilerplate needed to reproject individual shapely geometries between coordinate reference systems. Instead of manually creating a pyproj Transformer and calling shapely.ops.transform, you pass a geometry and two CRS identifiers to a single reproj() function. It mirrors the ease of use of GeoPandas's to_crs method but for standalone shapely features rather than GeoDataFrames.
The package is designed for developers working with vector geospatial data who need to transform individual geometries or small collections between coordinate systems. It requires Python 3.9 or later and depends on pyproj for coordinate transformation logic and shapely for geometry handling.
Use it for
- Convert a single shapely geometry from WGS84 (EPSG:4326) to a projected UTM zone for distance calculations.
- Batch reproject geometries in a loop without writing the pyproj Transformer boilerplate each time.
- Simplify coordinate system conversions in GIS scripts that don't warrant a full GeoPandas workflow.
- Transform geometries between arbitrary EPSG codes in geospatial data processing pipelines.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you work with individual shapely geometries and need frequent coordinate system transformations.
The package genuinely simplifies a common task and has no security vulnerabilities. It is actively maintained, has low install friction, and uses a permissive license. The main caveat is its small ecosystem footprint (1 star, early beta status) — it is stable for its narrow purpose but not battle-tested at scale.
Install
reproj on PyPI
Before you install
Low install friction with a pure-Python wheel and only two runtime dependencies (pyproj and shapely). Actively maintained with a recent release 75 days ago and ongoing repository activity.
License in practice
BSD-3-Clause is permissive; you can use this package freely in commercial and private projects with minimal restrictions beyond retaining the license notice.
Quickstart
pip install reproj
from reproj import reproj
utm_shape = reproj(wgs84_shape, 4326, 32630)Verify before relying
- Whether the package handles edge cases like null geometries, invalid CRS codes, or mixed geometry types gracefully.
- Performance characteristics when reprojecting large geometry collections or complex shapes.
- Whether additional CRS formats beyond EPSG codes (e.g., WKT, proj strings) are supported.
Package facts
| License | BSD-3-Clause permissive |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 2 packagespyprojshapely |
| Maintenance | Actively maintained 75 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 267,724 / month, #8,287 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 4 - BetaIntended Audience :: DevelopersIntended Audience :: Science/ResearchLicense :: OSI Approved :: BSD LicenseOperating System :: OS IndependentProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.9Topic :: Scientific/Engineering :: GISTopic :: Utilities |
Evidence: reproj-0.2.0-py3-none-any.whl
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See also geopandas · odc-geo · pyproj · xproj · reproject · shapely · topojson · antimeridian · utm · dask-geopandas