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

HTTP library written in Python for human beings

https://docs.python-requests.org/en/latest/

Utility belt for advanced users of python-requests

https://toolbelt.readthedocs.org

Pure-Python RSA implementation

https://stuvel.eu/software/rsa/

Unix-like tools to manipulate stored files from the command line

https://s3tools.org/s3cmd

Amazon S3 Transfer Manager for Python

https://github.com/boto/s3transfer

Helper to test command-line scripts

http://pythonpaste.org/scripttest/

Service identity verification for pyOpenSSL

https://github.com/pyca/service_identity

Python packages installer

https://pypi.org/project/setuptools/

Setuptools plugin for darcs

https://pypi.org/project/setuptools_darcs/

Setuptools plugin for hg

https://pypi.org/project/setuptools_hg/

Setuptools plugin to manage your versions by scm tags

https://github.com/pypa/setuptools_scm

Simple, fast, extensible JSON encoder/decoder

https://github.com/simplejson/simplejson

Backport of functools.singledispatch from Python 3.4

https://pypi.org/project/singledispatch/

Python 2 and 3 compatibility utilities

https://github.com/benjaminp/six

Snowball stemming library collection for Python

https://pypi.org/project/snowballstemmer/

SPARQL endpoint interface to Python

https://sparqlwrapper.readthedocs.io/en/stable/

Python bindings for Speech Dispatcher

https://devel.freebsoft.org/speechd

Python documentation generator

https://www.sphinx-doc.org/

Mobile-friendly py-sphinx theme

https://github.com/readthedocs/sphinx_rtd_theme

Sphinx API for Web Apps

https://github.com/sphinx-doc/sphinxcontrib-websupport

Database schema migrations for SQLAlchemy

https://opendev.org/x/sqlalchemy-migrate