Python 3 monotonic time module for Python 2

https://github.com/atdt/monotonic

More routines for operating on iterables, beyond itertools

https://github.com/more-itertools/more-itertools

Python MPD client library

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

Python bindings for MPI (OpenMPI)

https://github.com/mpi4py/mpi4py

Python Library for Arbitrary-precision Floating-point Arithmetic

http://www.mpmath.org/

MessagePack (de)serializer for Python

https://msgpack.org/

Multidict implementation

https://github.com/aio-libs/multidict

Parser for multipart/form-data

https://github.com/defnull/multipart

Munkres implementation for Python

https://software.clapper.org/munkres/ https://github.com/bmc/munkres

Python-based audio metadata tag reader and writer

https://github.com/quodlibet/mutagen

Optional static typing for Python

http://www.mypy-lang.org/

Experimental type system extensions for programs

http://www.mypy-lang.org

Extended commonmark compliant parser with bridges to docutils & sphinx

https://github.com/executablebooks/MyST-Parser

Manipulation of IPv4, IPv6, CIDR, EUI and MAC network addresses

https://github.com/drkjam/netaddr/

Getting network addresses from Python 3

https://pypi.org/project/netifaces/

Python version of node-semver

https://github.com/podhmo/python-node-semver

Node.js virtual environment builder

https://ekalinin.github.io/nodeenv/

Discovery-based unittest extension

https://nose.readthedocs.io/

Next generations of nicer testing for Python

https://nose2.readthedocs.io

Create NTLM authentication structures

https://github.com/jborean93/ntlm-auth

Python NTP library

https://pypi.org/project/ntplib/

Library to convert numbers to words in multiple languages

https://github.com/savoirfairelinux/num2words

The New Numeric Extension to Python

https://www.numpy.org/

Python library for OAuth version 1.0

https://github.com/joestump/python-oauth2

OAuth 2.0 client library

https://googleapis.github.io/oauth2client/

RFC-compliant implementation of the OAuth request-signing logic

https://github.com/idan/oauthlib

Draws Python object reference graphs with graphviz

https://mg.pov.lt/objgraph/ https://pypi.org/project/objgraph/ https://github.com/mgedmin/objgraph

Python module to read MS OLE2 files

http://www.decalage.info/en/olefile

OpenGrok tools for synchronization and mirroring

https://oracle.github.io/opengrok/

Python interface to the OpenSSL library

https://github.com/pyca/pyopenssl

ASCII plist parser written in Cython

https://github.com/fonttools/openstep-plist

Python wrapper for the OpenType Sanitizer

https://github.com/googlefonts/ots-python

Data derived from the OpenType specification

https://github.com/simoncozens/opentypespec-py

Capture the outcome of Python function calls

https://pypi.org/project/outcome/

Core utilities for Python packages

https://pypi.org/project/packaging/

Parameterized testing with any Python test framework

https://github.com/wolever/parameterized

Python SSH2 protocol library

https://www.paramiko.org/

Python module for parsing 'human readable' date/time expressions

https://github.com/bear/parsedatetime

Python Parser

https://github.com/davidhalter/parso

Comprehensive password hashing framework supporting over 30 schemes

https://bitbucket.org/ecollins/passlib

Library to parse and apply unified diffs

https://github.com/conan-io/python-patch-ng

Object-oriented paths

https://github.com/p1c2u/pathable

Object-oriented filesystem paths

https://pypi.org/project/pathlib2/

Utility library for pattern matching of file paths

https://pypi.org/project/pathspec/

Python Build Reasonableness

https://github.com/openstack-dev/pbr

Pure-Python PDF toolkit

https://mstamy2.github.io/PyPDF2/

WSGI object-dispatching web framework

https://github.com/pecan/pecan/

Pure Python Expect-like module

https://pexpect.readthedocs.io/

Pure-Python Interface to the PostgreSQL Database

https://github.com/tlocke/pg8000

Factory+Registry pattern for Python classes

https://github.com/todofixthis/class-registry/