Pure Python Python Packages

whenever

⏰ Modern datetime library for Python

jaconv

Pure-Python Japanese character interconverter for Hiragana, Katakana, Hankaku, and Zenkaku

cheroot

Cheroot is the high-performance, pure-Python HTTP server used by CherryPy. Docs -->

py-ubjson

Universal Binary JSON draft-12 serializer for Python

python-barcode

㊙️ Create standard barcodes with Python. No external dependencies. 100% Organic Python.

cherrypy

CherryPy is a pythonic, object-oriented HTTP framework. https://cherrypy.dev

kaldiio

A pure python module for reading and writing kaldi ark files

bfi

Fast optimizing Brainfuck interpreter in pure python

dilithium-py

A pure python implementation of ML-DSA (FIPS 204) and CRYSTALS-Dilithium

dynesty

Dynamic Nested Sampling package for computing Bayesian posteriors and evidences

splicecraft

Terminal-based plasmid map viewer, sequence editor, and cloning/mutagenesis workbench in pure Python

kyber-py

A pure python implementation of ML-KEM (FIPS 203) and CRYSTALS-Kyber

solvor

Optimization solvers in pure Python: LP, MILP, SAT, constraint programming, graph and metaheuristics. No dependencies. Solvor all your optimization needs.

chacha20poly1305

Pure python ChaCha20Poly1305 implementation

magicbus

The Process Bus is a publish/subscribe architecture that loosely connects components with services.

cognitive-discovery-platform

Cognitive Discovery System — pure Python scientific computing. 18 modules: quantum, ML, NLP, graph theory, Monte Carlo, ODE solvers, FFT & signal filters, optimization, probability, statistics & time-series, symbolic math, numerical integration (1-D/2-D), knowledge graph. 1438 tests, 100% coverage, v1.2.3.

thingy

Dictionaries as objects, that can have different dictionary views!

zenzic

🛡️ Static analyzer for documentation governance. Audits broken links, credentials, brand compliance & i18n parity. Engine-agnostic — works with MkDocs, Zensical, and any Docs-as-Code setup.

moira-astro

Astronomy-first pure-Python ephemeris and astrology computation engine with transparent, auditable calculations.

purerpc

Native, async Python gRPC client and server implementation supporting asyncio, uvloop, and trio

rabinmiller

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

peptides

Physicochemical properties, indices and descriptors for amino-acid sequences.

pyopenvba

Pure-Python reader/writer for VBA macros embedded in Excel / PowerPoint / Word files. Zero dependencies, deterministic round-trip, safe on protected and signed projects.

processes

Orchestrate graphs of callables in Python with automatic dependency resolution, parallel execution, retries, timeouts, and HTML email alerts on failure — zero dependencies