pyproj
Python interface to PROJ (cartographic projections and coordinate transformations library)
Decision gist · record as of 2026-08-14
pyproj is actively maintained with no known vulnerabilities, broad platform support via pre-built wheels for Python 3.11–3.13, and MIT licensing. Medium install friction reflects its compiled nature, but the extensive wheel coverage and active development (latest release 2025-08-14) make it a solid choice for geospatial work.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python ≥3.11; compiled wheels are provided but system dependencies may be required on some platforms.
- Medium install friction due to compiled wheels; however, pre-built binaries are available for Python 3.11, 3.12, and 3.13 across macOS, Linux, Windows, and ARM architectures, and the package is actively maintained.
License · maintenance · safety
MIT (permissive) — MIT license permits commercial and private use with minimal restrictions; you may use, modify, and distribute pyproj freely provided you retain the license notice.
last release 2025-08-14 (365 days) · last repo commit 2026-08-11 · 1,222 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 28,043,896 downloads/mo, #842 on PyPI
Alternatives
Verify before relying
pip install pyproj
import pyproj
from pyproj import Transformer- Whether PROJ library is fully bundled in wheels or requires system installation
- Performance characteristics for large-scale coordinate transformation operations
- Specific PROJ upstream version compatibility guarantees
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
pyproj provides a Python interface to PROJ, enabling cartographic projections and coordinate system transformations for geospatial applications.
pyproj is actively maintained with no known vulnerabilities, broad platform support via pre-built wheels for Python 3.11–3.13, and MIT licensing.
Medium install friction reflects its compiled nature, but the extensive wheel coverage and active development (latest release 2025-08-14) make it a solid choice for geospatial work.
Install
pyproj on PyPI
Before you install
Medium install friction due to compiled wheels; however, pre-built binaries are available for Python 3.11, 3.12, and 3.13 across macOS, Linux, Windows, and ARM architectures, and the package is actively maintained.
Requires Python ≥3.11; compiled wheels are provided but system dependencies may be required on some platforms.
License in practice
MIT license permits commercial and private use with minimal restrictions; you may use, modify, and distribute pyproj freely provided you retain the license notice.
Quickstart
pip install pyproj
import pyproj
from pyproj import TransformerVerify before relying
- Whether PROJ library is fully bundled in wheels or requires system installation
- Performance characteristics for large-scale coordinate transformation operations
- Specific PROJ upstream version compatibility guarantees
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.11 |
| Install friction | Medium. Platform-specific wheel |
| Runtime dependencies | 1 packagecertifi |
| Maintenance | Actively maintained 365 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 28,043,896 / month, #842 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 :: Science/ResearchOperating System :: OS IndependentProgramming Language :: PythonProgramming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: Free Threading :: 2 - BetaTopic :: Scientific/EngineeringTopic :: Scientific/Engineering :: GISTopic :: Scientific/Engineering :: MathematicsTopic :: Software Development :: Libraries :: Python ModulesTyping :: Typed |
Evidence: pyproj-3.7.2-cp311-cp311-macosx_13_0_x86_64.whl; pyproj-3.7.2-cp311-cp311-macosx_14_0_arm64.whl; pyproj-3.7.2-cp311-cp311-manylinux_2_28_aarch64.whl; pyproj-3.7.2-cp311-cp311-manylinux_2_28_x86_64.whl; pyproj-3.7.2-cp311-cp311-musllinux_1_2_aarch64.whl; pyproj-3.7.2-cp311-cp311-musllinux_1_2_x86_64.whl; pyproj-3.7.2-cp311-cp311-win32.whl; pyproj-3.7.2-cp311-cp311-win_amd64.whl; pyproj-3.7.2-cp311-cp311-win_arm64.whl; pyproj-3.7.2-cp312-cp312-macosx_13_0_x86_64.whl; pyproj-3.7.2-cp312-cp312-macosx_14_0_arm64.whl; pyproj-3.7.2-cp312-cp312-manylinux_2_28_aarch64.whl; pyproj-3.7.2-cp312-cp312-manylinux_2_28_x86_64.whl; pyproj-3.7.2-cp312-cp312-musllinux_1_2_aarch64.whl; pyproj-3.7.2-cp312-cp312-musllinux_1_2_x86_64.whl; pyproj-3.7.2-cp312-cp312-win32.whl; pyproj-3.7.2-cp312-cp312-win_amd64.whl; pyproj-3.7.2-cp312-cp312-win_arm64.whl; pyproj-3.7.2-cp313-cp313-macosx_13_0_x86_64.whl; pyproj-3.7.2-cp313-cp313-macosx_14_0_arm64.whl
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