Separate the TLD from the registered domain and subdomains of a URL

https://github.com/john-kurkowski/tldextract

Wrapper around the stdlib `tokenize` which roundtrips

https://github.com/asottile/tokenize-rt

Python library for parsing and creating TOML

https://github.com/uiri/toml

Lil' TOML parser

https://github.com/hukkin/tomli

Lil' TOML writer

https://github.com/hukkin/tomli-w

Style-preserving TOML library

https://tomlkit.readthedocs.io/en/latest/ https://github.com/sdispater/tomlkit

Python Web Server from FriendFeed

https://www.tornadoweb.org/ https://github.com/tornadoweb/tornado

Building newsfiles for your project

https://github.com/twisted/towncrier

Virtualenv-based automation of test activities

https://tox.readthedocs.org/

Fast, extensible progress bar for Python

https://tqdm.github.io/ https://github.com/tqdm/tqdm

New features in traceback backported to Python 2

https://pypi.org/project/traceback2/

Configuration system for Python applications

https://github.com/ipython/traitlets

Requests-like API built on top of twisted.web's Agent

https://github.com/twisted/treq

Library for async concurrency and I/O

https://pypi.org/project/trio/

WebSocket library for Trio

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

Canonical source for classifiers on PyPI

https://github.com/pypa/trove-classifiers

Top quality TLS certs while you wait, for the discerning tester

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

Python wrapper for ttfautohint

https://github.com/fonttools/ttfautohint-py

Python progress reporting to /dev/tty

https://liw.fi/ttystatus/

Collection of utilities for interacting with PyPI

https://github.com/pypa/twine

Collection of utilities for interacting with PyPI

https://github.com/pypa/twine

Asynchronous networking framework written in Python

https://twistedmatrix.com/ https://github.com/twisted/twisted

Python API and command-line toolset for Twitter

https://github.com/sixohsix/twitter

Compatibility API between asyncio/Twisted/Trollius

https://github.com/crossbario/txaio

Runtime type checker for Python

https://github.com/agronholm/typeguard

Typing stubs for Jinja2

https://pypi.org/project/types-Jinja2/

Typing stubs for MarkupSafe

https://pypi.org/project/types-MarkupSafe/

Typing stubs for PyYAML

https://pypi.org/project/types-PyYAML/

Typing stubs for docutils

https://github.com/python/typeshed/tree/main/stubs/docutils

Typing stubs for jsonschema

https://pypi.org/project/types-jsonschema/

Typing stubs for psutil

https://github.com/python/typeshed/tree/main/stubs/psutil

Typing stubs for python-dateutil

https://github.com/python/typeshed

Typing stubs for requests

https://pypi.org/project/types-requests/

Typing stubs for setuptools

https://github.com/python/typeshed/tree/main/stubs/setuptools

Typing stubs for toml

https://github.com/python/typeshed/tree/main/stubs/toml

Typing stubs for urllib3

https://pypi.org/project/types-urllib3/

Backported and Experimental Type Hints for Python 3.5+

https://github.com/python/typing_extensions

Runtime inspection utilities for typing module

https://github.com/ilevkivskyi/typing_inspect

Filters to enhance web typography

https://github.com/mintchaos/typogrify/

Provider of IANA time zone data

https://github.com/python/tzdata

Portable, lightweight MessagePack (de)serializer

https://github.com/vsergeev/u-msgpack-python

Bridge between UFOs and FontTools

https://github.com/googlefonts/ufo2ft

Low-level Unified Font Object (UFO) reader and writer

http://unifiedfontobject.org/

UFO font processing library

https://github.com/fonttools/ufoLib2

UFO source file linter

https://github.com/source-foundry/ufolint

Script to normalize the XML and other data inside of a UFO

https://github.com/unified-font-object/ufoNormalizer

Read, write and generate UFOs with designspace data

https://github.com/LettError/ufoProcessor

Ultra fast JSON encoder and decoder for Python

https://github.com/esnme/ultrajson

Simple package

https://github.com/Carreau/undefined

Unicodedata backport updated to the latest Unicode version

https://github.com/fonttools/unicodedata2