Coroutine-based library for concurrent Python systems programming

https://github.com/dabeaz/curio

Generate a version number from darcs history

https://pypi.python.org/pypi/darcsver

Datadog Python library

https://github.com/DataDog/datadogpy

Extensions to the standard Python datetime module

https://dateutil.readthedocs.io

Serialize all of python

https://dill.readthedocs.io/en/latest/

Configurable set of panels to display debug information

https://django-debug-toolbar.readthedocs.io/en/latest/ https://github.com/jazzband/django-debug-toolbar

High-level Python Web Framework

https://www.djangoproject.com/

High-level Python Web Framework

https://www.djangoproject.com/

High-level Python Web Framework

https://www.djangoproject.com/

Python 3.4 Enum backported to 3.3, 3.2, 3.1, 2.7

https://pypi.org/project/enum34/

Bindings to the Linux input handling subsystem

https://pypi.org/project/evdev/

Fastest Python implementation of JSON schema

https://horejsek.github.io/python-fastjsonschema/

OGR's neat and nimble API for Python programmers

https://pypi.org/project/fiona/

Fixtures, reusable state for writing clean tests and more

https://pypi.org/project/fixtures/

Micro web framework

http://flask.pocoo.org/

JWT token authentication for Flask apps

https://github.com/mattupstate/flask-jwt

Simple framework for creating REST APIs with Flask

https://flask-restful.readthedocs.io/

Add SQLAlchemy support to your Flask application

https://flask-sqlalchemy.palletsprojects.com/en/3.1.x/ https://github.com/pallets-eco/flask-sqlalchemy

Simple packaging tool for simple packages

https://flit.pypa.io/en/stable/ https://github.com/pypa/flit

Distribution-building parts of Flit

https://flit.pypa.io/en/stable/ https://github.com/pypa/flit/tree/main/flit_core

Python library for manipulating OpenType font features

https://github.com/simoncozens/fontFeatures

Collection of classes implementing the pen protocol for manipulating glyphs

https://github.com/robotools/fontPens

Freetype python bindings

https://github.com/rougier/freetype-py

Python filesystem abstraction

http://pyfilesystem.org/

File-system specification

https://filesystem-spec.readthedocs.io/en/latest/ https://github.com/fsspec/filesystem_spec

XRootD implementation for fsspec

https://coffeateam.github.io/fsspec-xrootd/ https://github.com/CoffeaTeam/fsspec-xrootd

High-level FTP client library

https://ftputil.sschwarzer.net/

AST that abstracts the underlying Python version

https://github.com/serge-sans-paille/gast

Toolkit for generation of output for the web

http://genshi.edgewall.org/

Python's Encoder/decoder for simple GIS features

https://pypi.org/project/geojson/

Python tools for geographic data

https://pypi.org/project/geopandas/

Git Object Database

https://gitdb.readthedocs.io/en/latest/ https://github.com/gitpython-developers/gitdb

Git Object Database

https://pypi.org/project/gitdb2/

Python Git Library

https://github.com/gitpython-developers/GitPython

Build and validate addresses in localized formats

https://pypi.org/project/google-i18n-address/

Protobuf code generator for gRPC

https://pypi.org/project/grpcio-tools/

Build System That Generates Other Build Systems

https://gyp.gsrc.io/

Generate Your Projects

http://code.google.com/p/gyp/

Python extension that wraps hiredis

https://github.com/pietern/hiredis-py

Chromium HSTS Preload list

https://github.com/sethmlarson/hstspreload

HTML Minifier

https://htmlmin.readthedocs.io/en/latest/ https://github.com/wilhelmer/htmlmin

Minimal low-level HTTP client

https://github.com/encode/httpcore

Next generation HTTP client

https://www.python-httpx.org/ https://github.com/encode/httpx

Next generation HTTP client

https://github.com/encode/httpx

Internationalized Domain Names in Applications (IDNA)

https://github.com/kjd/idna

ISO 8601 date/time/duration parser and formater

https://pypi.org/project/isodate/

Various helpers to pass data in untrusted environments

https://github.com/mitsuhiko/itsdangerous/

Lightweight pipelining using Python functions as jobs

https://joblib.readthedocs.io/

Ultimate Python library for JOSE RFCs

https://jose.authlib.org/en/dev/ https://github.com/authlib/joserfc

Apply JSON-Patches (RFC 6902)

https://github.com/stefankoegl/python-json-patch