Skip to main content

rabinmiller

Pure-Python implementation of the Rabin-Miller primality test.

PyPI version and link. Read the Docs documentation status. GitHub Actions status. Coveralls test coverage summary.

Purpose

This library provides a pure-Python implementation of the Rabin-Miller primality test. Based on a simple implementation, this library prioritizes portability and readability. If performance is a priority, other libraries may be more appropriate.

Installation and Usage

This library is available as a package on PyPI:

python -m pip install rabinmiller

The library can be imported in the usual manner:

from rabinmiller import rabinmiller

Examples

The Rabin-Miller primality test may return a false positive with low probability, but never returns a false negative. A return value of False guarantees that the input is composite; a return value of True indicates that there is a high likelihood that the input is prime:

>>> rabinmiller(2)
True
>>> rabinmiller(4)
False
>>> rabinmiller(9999777777776655544433333333222111111111)
True
>>> rabinmiller(9999777777776655544433333333222111111115)
False
>>> rabinmiller(int(''.join([
...     '129600000000000000000000000000060069996000000000000000',
...     '0000000092808755643600000000000000000004779682424746201'
... ])))
False
>>> rabinmiller(0) or rabinmiller(1)
False
>>> any(rabinmiller(i * i) for i in range(2, 1000))
False

Development

All installation and development dependencies are fully specified in pyproject.toml. The project.optional-dependencies object is used to specify optional requirements for various development tasks. This makes it possible to specify additional options (such as docs, lint, and so on) when performing installation using pip:

python -m pip install ".[docs,lint]"

Documentation

The documentation can be generated automatically from the source files using Sphinx:

python -m pip install ".[docs]"
cd docs
sphinx-apidoc -f -E --templatedir=_templates -o _source .. && make html

Testing and Conventions

All unit tests are executed and their coverage is measured when using pytest (see the pyproject.toml file for configuration details):

python -m pip install ".[test]"
python -m pytest

Alternatively, all unit tests are included in the module itself and can be executed using doctest:

python src/rabinmiller/rabinmiller.py -v

Style conventions are enforced using Pylint:

python -m pip install ".[lint]"
python -m pylint src/rabinmiller

Contributions

In order to contribute to the source code, open an issue or submit a pull request on the GitHub page for this library.

Versioning

The version number format for this library and the changes to the library associated with version number increments conform with Semantic Versioning 2.0.0.

Publishing

This library can be published as a package on PyPI via the GitHub Actions workflow found in .github/workflows/build-publish-sign-release.yml that follows the recommendations found in the Python Packaging User Guide.

Ensure that the correct version number appears in pyproject.toml, and that any links in this README document to the Read the Docs documentation of this package (or its dependencies) have appropriate version numbers. Also ensure that the Read the Docs project for this library has an automation rule that activates and sets as the default all tagged versions.

To publish the package, create and push a tag for the version being published (replacing ?.?.? with the version number):

git tag ?.?.?
git push origin ?.?.?

Metadata

Release files for rabinmiller 0.2.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for rabinmiller 0.2.0
File Size Uploaded Provenance Actions
rabinmiller-0.2.0.tar.gz 26.2 kB With provenance Details for rabinmiller-0.2.0.tar.gz

Built distribution (wheel)

Table of built distributions (wheels) for rabinmiller 0.2.0
File Interpreter ABI Platform Actions
rabinmiller-0.2.0-py3-none-any.whl Python 3 none any Details for rabinmiller-0.2.0-py3-none-any.whl

Total release size: 49.7 kB

Release files / rabinmiller-0.2.0.tar.gz

Download URL rabinmiller-0.2.0.tar.gz
Size 26.2 kB
Tags Source
SHA-256 checksum
How to use checksums
bdcd740ad24526bf7347f37c76ca0d3b639b9fcd5728391e97399efdf5b8cf30
BLAKE2b-256 checksum
How to use checksums
89fdb72281a6bbbc7f8cc70520709b5d88d59fccbe1948ac1c2a983df4177dd4
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
Yes
Uploaded via twine/6.1.0 CPython/3.13.7

Provenance

Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.

PyPI Publish Attestation

PyPI verified that this artifact, at this checksum, originated from the publisher listed below.

Signed by GitHub Actions, verified by PyPI on Oct 4, 2025.

Transparency log

Release files / rabinmiller-0.2.0-py3-none-any.whl

Download URL rabinmiller-0.2.0-py3-none-any.whl
Size 23.5 kB
Tags Python 3
SHA-256 checksum
How to use checksums
63fbb170cc641d376258b50736883e186d2d7140170633cd0094cdea9daff388
BLAKE2b-256 checksum
How to use checksums
c305047fec7aff215be2a4993fba2188550f06b2e2a90158fe5146ca46616986
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
Yes
Uploaded via twine/6.1.0 CPython/3.13.7

Provenance

Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.

PyPI Publish Attestation

PyPI verified that this artifact, at this checksum, originated from the publisher listed below.

Signed by GitHub Actions, verified by PyPI on Oct 4, 2025.

Transparency log

Security for rabinmiller 0.2.0

Provenance

Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.

Full provenance

Both files in this release have been uploaded with provenance metadata.

Select from 2 files

Attestation for rabinmiller-0.2.0.tar.gz

PyPI Publish Attestation

PyPI verified that this artifact, at this checksum, originated from the publisher listed below.

Signed by GitHub Actions, verified by PyPI on Oct 4, 2025.

Transparency log

A note on package security

PyPI is a repository for distributing packages, not a service for auditing them. While third-party security researchers and our staff do their best to detect and remove malicious packages, PyPI cannot guarantee the quality, security or suitability of any given package.

To learn more about protecting yourself from malicious actors, visit our package security documentation.

Release history Release notifications | RSS feed

This release

0.2.0 This release

2 release files Full provenance

Anthropic, PBC Visionary sponsor Bloomberg Visionary sponsor Hudson River Trading Visionary sponsor Meta Visionary sponsor NVIDIA Visionary sponsor Microsoft Sustainability sponsor Depot Continuous Integration AWS Cloud computing and Security Sponsor Datadog Monitoring Fastly CDN Google Download Analytics Sentry Error logging StatusPage Status page