Python 2 and 3 compatibility utilities

https://github.com/benjaminp/six

Translate plain ASCII punctuation into smart typographic HTML

https://github.com/leohemsted/smartypants.py

Sliding-window memory map manager

https://pypi.org/project/smmap2/

Sniff out which async library your code is running under

https://github.com/python-trio/sniffio

Snowball stemming library collection for Python

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

Python Sorted Container Types: SortedList, SortedDict, and SortedSet

http://www.grantjenks.com/docs/sortedcontainers/

CSS4 selector implementation for BeautifulSoup

https://github.com/facelessuser/soupsieve

SPARQL endpoint interface to Python

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

Python bindings for Speech Dispatcher

https://devel.freebsoft.org/speechd

Command line interface for testing internet bandwidth

https://github.com/sivel/speedtest-cli

Python documentation generator

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

Sphinx extension that automatically documents argparse

https://github.com/ribozz/sphinx-argparse

Sphinx API documentation generator

https://sphinx-autoapi.readthedocs.io/

Type hints (PEP 484) support for the Sphinx autodoc extension

https://github.com/agronholm/sphinx-autodoc-typehints

Wrap README-only projects in a dynamic Sphinx shell

https://github.com/stephenmcd/sphinx-me/

Mobile-friendly py-sphinx theme

https://github.com/readthedocs/sphinx_rtd_theme

Sphinx Adadomain Extension

https://bitbucket.org/tkoskine/sphinxcontrib-adadomain

Extension which outputs Apple help books

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

Sphinx/BitBucket integration

http://www.doughellmann.com/projects/sphinxcontrib-bitbucket/

Sphinx extension which outputs Devhelp document

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

Sphinx Fulltoc Extension

https://pypi.org/project/sphinxcontrib-fulltoc/

Sphinx extension which renders HTML help files

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

Sphinx domain for HTTP APIs

https://github.com/sphinx-contrib/httpdomain

Sphinx integration with different issue trackers

https://github.com/ignatenkobrain/sphinxcontrib-issuetracker

Sphinx extension which renders display math in HTML via JavaScript

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

Organize changelog directives in Sphinx docs

https://github.com/davidism/sphinxcontrib-log-cabinet

Sphinx extension that parses both NumPy and Google style docstrings

https://pypi.org/project/sphinxcontrib-napoleon/

News Feed extension for Sphinx

https://pypi.org/project/sphinxcontrib-newsfeed/

Sphinx extension to include program output

https://pythonhosted.org/sphinxcontrib-programoutput/

Sphinx extension which outputs QtHelp document

http://sphinx-doc.org/

Sphinx extension which outputs serialized HTML files (json and pickle)

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

Sphinx extension for converting SVG to PDF

https://github.com/missinglinkelectronics/sphinxcontrib-svg2pdfconverter

RST directive for injecting a Towncrier-generated changelog draft

https://github.com/sphinx-contrib/sphinxcontrib-towncrier

Sphinx API for Web Apps

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

Sphinx API for Web Apps

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

Database schema migrations for SQLAlchemy

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

Python SQL toolkit and Object Relational Mapper 1.0.x

http://www.sqlalchemy.org/

Python SQL toolkit and Object Relational Mapper 1.1.x

https://www.sqlalchemy.org/

Python SQL toolkit and Object Relational Mapper 1.2.x

https://www.sqlalchemy.org/

Python SQL toolkit and Object Relational Mapper 1.3.x

https://www.sqlalchemy.org/

Standard Python binding to the SQLite3 library

Non-validating SQL parser for Python

https://pypi.org/project/sqlparse/

Python module to handle standardized numbers and codes

https://pypi.org/project/python-stdnum/

Stripe Python bindings

https://github.com/stripe/stripe-python

Captures output while still printing it in real-time

https://github.com/pycontribs/subprocess-tee

Python bindings for version control system

http://subversion.apache.org/

Utility belt for automated testing in Python for Python

https://github.com/gabrielfalcao/sure

Python Library For Symbolic Mathematics

http://sympy.org/

Pretty-print tabular data in Python

https://bitbucket.org/astanin/python-tabulate

Retry code until it succeeds

https://github.com/jd/tenacity