Discovery-based unittest extension

https://nose.readthedocs.io/

Python bindings for libnotify

http://www.galago-project.org/specs/notification/index.php

The Numeric Extension to Python

http://numeric.scipy.org/

The New Numeric Extension to Python

https://www.numpy.org/

Python library for OAuth version 1.0

https://github.com/joestump/python-oauth2

Python interface to the OpenSSL library

https://github.com/pyca/pyopenssl

Python bindings for ORBit2

Python module for parsing 'human readable' date/time expressions

https://github.com/bear/parsedatetime

General parsing module for Python

https://pypi.python.org/pypi/pyparsing

Python Build Reasonableness

https://github.com/openstack-dev/pbr

Pure Python Expect-like module

https://pexpect.readthedocs.io/

Fork of the Python Imaging Library (PIL)

https://python-pillow.org/

Tool for installing and managing Python packages

https://pip.pypa.io/en/latest/

Interface Python with pkg-config

https://pypi.org/project/pkgconfig/

Plugin and hook calling mechanisms for Python

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

Python Lex-Yacc

http://www.dabeaz.com/ply/

Python 3 compatible PostgreSQL database driver and tools

http://python.projects.postgresql.org/

Library for stubbing in Python

https://github.com/alex/pretend

Process utilities module for Python

https://pypi.org/project/psutil/

High performance Python adapter for PostgreSQL

http://initd.org/psycopg/

Run a subprocess in a pseudo terminal

https://github.com/pexpect/ptyprocess

Library with cross-python path, ini-parsing, io, code, log facilities

https://pylib.org/

ASN.1 toolkit for Python

http://snmplabs.com/pyasn1/

Collection of ASN.1 data structures for py-pyasn1

https://github.com/etingof/pyasn1-modules

Python style guide checker

https://pypi.org/project/pycodestyle/

C parser in Python

https://github.com/eliben/pycparser

Python Cryptography Toolkit

https://pycrypto.org

CUPS bindings for Python

https://github.com/zdohnal/pycups

Passive checker of Python programs

https://github.com/PyCQA/pyflakes

Syntax highlighter written in Python

https://pygments.org/

JSON Web Token implementation in Python

https://github.com/jpadilla/pyjwt

Python binding to the Networking and Cryptography library

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

General parsing module for Python

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

Generate and parse RFC 3339 timestamps

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

Python SOCKS module

https://github.com/Anorov/PySocks

Snowball Stemming Algorithms for Information Retrieval

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

Simple powerful testing with Python

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

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

Pytest plugin for measuring coverage

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

pytest plugin to check FLAKE8 requirement

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

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

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

Test support for pytest runner in setup.py

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

Pytest plugin to abort hanging tests

https://bitbucket.org/pytest-dev/pytest-timeout

Pytest xdist plugin for distributed testing and loop-on-failing modes

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

Python wrapper for HTML Tidy (tidylib)

http://countergram.com/open-source/pytidylib

World Timezone Definitions for Python

https://pythonhosted.org/pytz/

Python parser for RAML

https://github.com/spotify/ramlfications

Python library for RDF manipulation

https://pypi.org/project/rdflib/

CommonMark bridge for docutils and Sphinx

https://github.com/rtfd/recommonmark