Python interface to GraphViz agraph

https://pygraphviz.github.io

Hamcrest matchers for Python

https://github.com/hamcrest/PyHamcrest

Python extension wrapping IBM's ICU C++ API

https://pypi.org/project/PyICU/

Python interface to (lib)inotify

https://github.com/seb-m/pyinotify

Jade syntax template adapter for Django, Jinja2, Mako and Tornado templates

https://github.com/syrusakbary/pyjade

JSON Web Token implementation in Python

https://github.com/jpadilla/pyjwt

Sphinx themes for Pylons Project documentation

https://github.com/Pylons/pylons-sphinx-themes

Python wrapper for the ls-qpack QPACK library

https://github.com/aiortc/pylsqpack

Postfix queue control python tool

https://github.com/outini/pymailq

Extension pack for Python Markdown

https://github.com/facelessuser/pymdown-extensions

Python driver for MongoDB

https://github.com/mongodb/mongo-python-driver

Pure Python MySQL Driver

https://github.com/PyMySQL/PyMySQL

Python binding to the Networking and Cryptography library

https://pypi.org/project/PyNaCl/

Python One Time Password Library

https://pyauth.github.io/pyotp/ https://github.com/pyauth/pyotp

Common base Sphinx theme for PyPA projects

https://github.com/pypa/pypa-docs-theme

General parsing module for Python

https://pypi.org/project/pyparsing/

Module to hyphenate text based on Hunspell dictionaries

https://pyphen.org/

API to interact with the python pyproject.toml based projects

https://pyproject-api.readthedocs.io/

PEP 621 metadata parsing

https://github.com/FFY00/python-pyproject-metadata

Wrappers to call pyproject.toml-based build backend hooks

https://github.com/pypa/pyproject-hooks

Pure Python QR code generator with SVG, EPS, PNG and terminal output

https://github.com/mnooner256/pyqrcode

Generate and parse RFC 3339 timestamps

https://pypi.org/project/pyRFC3339/

Persistent/Functional/Immutable data structures

https://github.com/tobgu/pyrsistent

Python interface to sendfile(2)

https://github.com/giampaolo/pysendfile

Serial port encapsulation library for Python

https://github.com/pyserial/pyserial

Python SOCKS module

https://github.com/Anorov/PySocks

Deal PySol FC Cards

https://pypi.org/project/pysol-cards/

SPF (Sender Policy Framework) implemented in Python

https://github.com/sdgathman/pyspf

Snowball Stemming Algorithms for Information Retrieval

https://pypi.org/project/PyStemmer/

Simple powerful testing with Python

https://docs.pytest.org/en/latest/

Py.test plugin providing fixtures and markers for asyncio

https://pypi.org/project/pytest-asyncio/

pytest plugin to enable format checking with black

https://github.com/shopkeep/pytest-black

Allow --black on older Pythons

https://github.com/jaraco/pytest-black-multipy

Pytest plugin with mechanisms for caching across test runs

https://bitbucket.org/hpk42/pytest-cache/

Py.test plugin to capture log messages

https://bitbucket.org/memedough/pytest-capturelog/overview

Check the README when running tests

https://github.com/jaraco/pytest-checkdocs

Pytest plugin for measuring coverage

https://github.com/pytest-dev/pytest-cov

pytest plugin for test data directories and files

https://pypi.org/project/pytest-datadir/ https://github.com/gabrielcnr/pytest-datadir

Enable installed pytest plugins

https://github.com/jaraco/pytest-enabler

Py.test plugin that allows you to add environment variables

https://github.com/MobileDynasty/pytest-env

pytest plugin to check FLAKE8 requirement

https://pypi.org/project/pytest-flake8/

Run tests in isolated forked subprocesses

https://github.com/pytest-dev/pytest-forked

Pytest plugin for generating html reports

https://github.com/pytest-dev/pytest-html

HTTP server for pytest

https://github.com/csernazs/pytest-httpserver

py.test plugin to check import ordering using isort

https://github.com/moccu/pytest-isort

Use fixtures in pytest.mark.parametrize

https://github.com/TvoroG/pytest-lazy-fixture

Pytest plugin for test session metadata

https://github.com/pytest-dev/pytest-metadata

Thin wrapper around the mock package for easier use with py.test

https://github.com/pytest-dev/pytest-mock/

Mypy static type checker plugin for pytest

https://github.com/dbader/pytest-mypy

Pytest plus plugin :: extends pytest functionality

https://github.com/pytest-dev/pytest-plus