Extensions to the standard Python datetime module

https://dateutil.readthedocs.io

Python bindings for the D-BUS messaging system

https://dbus.freedesktop.org/doc/dbus-python/

Data-Driven Tests for Python Unittest

https://readthedocs.org/projects/ddt/

Better living through Python with decorators

https://github.com/micheles/decorator

Set of flexible objects for representing UFO data

https://github.com/typesupply/defcon

XML bomb protection for Python stdlib modules

https://bitbucket.org/tiran/defusedxml

Linux OS platform information API

https://github.com/nir0s/distro

Python library for DKIM email signing and verification

https://launchpad.net/dkimpy

DNS (Domain Name Service) library for Python

http://pydns.sourceforge.net/

DNS toolkit for Python

http://www.dnspython.org/

Python Documentation Utilities

https://docutils.sourceforge.io/

Helpful CLI utilities for querying and connecting to EC2 instances

https://github.com/FlipPath/ec2-cli-tools

ECDSA cryptographic signature library (pure python)

https://github.com/warner/python-ecdsa

Robust email address syntax and deliverability validation library

https://github.com/JoshData/python-email-validator

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/

Distributed Python deployment and communication

http://codespeak.net/execnet/

Useful extra bits for Python

https://pypi.org/project/extras/

Scans log files and bans IP that makes too many password failures

https://www.fail2ban.org/wiki/index.php/Main_Page

Python package that provides useful locks

https://github.com/harlowja/fasteners

Platform independent file lock

https://github.com/benediktschmitt/py-filelock

File I/O related functions and classes

http://www.livinglogic.de/Python/fileutils/

Code checking using pep8 and pyflakes

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

Font version reporting and modification tool

https://github.com/source-foundry/font-v

Set of objects for performing math operations on font data

https://github.com/typesupply/fontMath

Compile fonts from sources to binary

https://github.com/googlei18n/fontmake

Open source library for manipulating fonts, written in Python

https://github.com/fonttools/fonttools

Open source library for manipulating fonts, written in Python

https://github.com/fonttools/fonttools

Simple PDF generation for Python

https://code.google.com/p/pyfpdf/

Let your Python tests travel through time

https://github.com/spulec/freezegun

Python filesystem abstraction

http://pyfilesystem.org/

Python Filesystem abstraction layer, version 2.x

https://www.pyfilesystem.org/

Python function signatures from PEP362

http://funcsigs.readthedocs.org/

Clean single-source support for Python 3 and 2

https://python-future.org/

Backport of the concurrent.futures package from Python 3.2

https://github.com/agronholm/pythonfutures

Module designed to write games in Python

https://www.pygame.org/news

GData Python Client Library

https://github.com/google/gdata-python-client

Python bindings to the GNU dbm library (Python 3.10)

Toolkit for generation of output for the web

https://genshi.edgewall.org/

Git Object Database

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

Python Git Library

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

Bridge from Glyphs source files (.glyphs) to UFOs

https://github.com/googlei18n/glyphsLib

Python Extension that Wraps the GMP Library

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

Python bindings for GObject

Common files for the Python bindings for GObject

Build and validate addresses in localized formats

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

Python bindings for gstreamer

http://gstreamer.freedesktop.org/

Set of Python bindings for GTK+

http://www.pygtk.org/

WSGI HTTP Server for UNIX

https://gunicorn.org/

Build System That Generates Other Build Systems

https://gyp.gsrc.io/