ninja

Ninja is a small build system with a focus on speed

ninja Permissive license Active ★ 89 v1.13.0 released 2025-08-11

Install

ninja on PyPI

pip

pip install ninja

uv

uv add ninja

poetry

poetry add ninja

Package facts

License	not declared (permissive)
Python support	supports the current Python release (>=3.8)
Install friction	medium — platform-specific wheel
Runtime dependencies	none
Maintenance	actively maintained — 367 days since the last release
Last repo commit	2026-08-10
First released	2015-02-04
Popularity	one of the top 1,000 most-downloaded packages on PyPI (30-day window, as of 2026-08-13)
Known vulnerabilities	none known (OSV.dev, checked 2026-08-13)

Evidence: ninja-1.13.0-py3-none-macosx_10_9_universal2.whl; ninja-1.13.0-py3-none-manylinux2014_aarch64.manylinux_2_17_aarch64.whl; ninja-1.13.0-py3-none-manylinux2014_i686.manylinux_2_17_i686.whl; ninja-1.13.0-py3-none-manylinux2014_ppc64le.manylinux_2_17_ppc64le.whl; ninja-1.13.0-py3-none-manylinux2014_s390x.manylinux_2_17_s390x.whl; ninja-1.13.0-py3-none-manylinux2014_x86_64.manylinux_2_17_x86_64.whl; ninja-1.13.0-py3-none-manylinux_2_28_armv7l.manylinux_2_31_armv7l.whl; ninja-1.13.0-py3-none-manylinux_2_31_riscv64.whl; ninja-1.13.0-py3-none-musllinux_1_2_aarch64.whl; ninja-1.13.0-py3-none-musllinux_1_2_armv7l.whl; ninja-1.13.0-py3-none-musllinux_1_2_i686.whl; ninja-1.13.0-py3-none-musllinux_1_2_ppc64le.whl; ninja-1.13.0-py3-none-musllinux_1_2_riscv64.whl; ninja-1.13.0-py3-none-musllinux_1_2_s390x.whl; ninja-1.13.0-py3-none-musllinux_1_2_x86_64.whl; ninja-1.13.0-py3-none-win32.whl; ninja-1.13.0-py3-none-win_amd64.whl; ninja-1.13.0-py3-none-win_arm64.whl

Keywords: build, c++, cross-compilation, cross-platform, fortran, ninja

Development Status :: 5 - Production/StableIntended Audience :: DevelopersLicense :: OSI Approved :: Apache Software LicenseLicense :: OSI Approved :: BSD LicenseOperating System :: OS IndependentProgramming Language :: CProgramming Language :: C++Programming Language :: FortranProgramming Language :: PythonTopic :: Software Development :: Build ToolsTyping :: Typed

About ninja

from the package's own PyPI description — quoted content, verbatim

========================== Ninja Python Distributions ==========================

Ninja <http://www.ninja-build.org>_ is a small build system with a focus on speed.

The latest Ninja python wheels provide ninja 1.13.0.gd74ef.kitware.jobserver-pipe-1 <https://ninja-build.org/manual.html>_ executable and ninja_syntax.py for generating .ninja files.

.. image:: https://raw.githubusercontent.com/scikit-build/ninja-python-distributions/master/ninja-python-distributions-logo.png

Latest Release

.. table::

+----------------------------------------------------------------------+---------------------------------------------------------------------------+ | Versions | Downloads | +======================================================================+===========================================================================+ | .. image:: https://img.shields.io/pypi/v/ninja.svg | .. image:: https://img.shields.io/badge/downloads-2535k%20total-green.svg | | :target: https://pypi.python.org/pypi/ninja...

Read as markdown · JSON record · Source repository · Homepage · Docs

AI interpretation — verify before relying

AI-generated interpretation of the package facts above; every digit, version, license, or vulnerability id it cites is grounded in the facts already shown on this page

Distributes the Ninja 1.13.0 build system as Python wheels with pre-built executables for Windows, macOS, and Linux platforms.

Medium install friction mitigated by comprehensive binary coverage across 18 wheel variants (x86_64, ARM, RISC-V, and other architectures). Actively maintained with recent commits and stable production status.

Permissive Apache License 2.0 allows commercial and private use without restriction. The bundled Ninja executable carries the same Apache 2.0 license—no licensing friction for most use cases.

Usage

pip install ninja==1.13.0

Requires Python ≥3.8; versions after 1.13 require manylinux2014+/musllinux_1_2+ on Linux.

Verdict: Ninja is a mature, actively maintained build-system distribution (1.13.0, released 2025-08-11) with zero known vulnerabilities, permissive Apache 2.0 licensing, and broad platform support. Medium install friction is offset by comprehensive pre-built wheels. Suitable for production use in build pipelines.

Needs verification

What capabilities the bundled executable and included tools provide beyond the base Ninja build system
Integration patterns with scikit-build and other build frameworks that depend on this package
Performance characteristics of the bundled Ninja executable relative to system-installed versions

ninja build system pythonbuild tool distributioncross-platform build automationfast build systempython build executablecmake ninjabuild system wheels