PyNaCl is a Python binding to libsodium, which is a fork of the Networking and Cryptography library. These libraries have a stated goal of improving usability, security and speed.

Genshi is a Python library that provides an integrated set of components for parsing, generating, and processing HTML, XML or other textual content for output generation on the web.

PyVISA is a Python package for support of the VISA, in order to control measurement devices and test equipment via GPIB, RS232, Ethernet or USB.

LIBSVM is a machine learning library for support vector classification, (C-SVC, nu-SVC), regression (epsilon-SVR, nu-SVR) and distribution estimation (one-class SVM). It supports multi-class classification.

Cython is an optimising static compiler for both the Python programming language and the extended Cython programming language. It makes writing C extensions for Python as easy as Python itself.

ZipFly is a zip archive generator. It was created to generate very large zip archives for immediate sending out to clients, or for writing large zip archives without memory inflation.

This python library provides interfaces for parsing and working with Portable Executable (PE) files. It makes to most information from the header, as well as section details and data available.

Cython is an optimising static compiler for both the Python programming language and the extended Cython programming language. It makes writing C extensions for Python as easy as Python itself.

Astral is a Python module that calculates times for various positions of the sun: dawn, sunrise, solar noon, sunset, dusk, solar elevation, solar azimuth, rahukaalam, and the phases of the moon.

healpy is a Python package to handle pixelated data on the sphere. It is based on the Hierarchical Equal Area isoLatitude Pixelization (HEALPix) scheme and builds with the HEALPix C++ library.

Pyglet is a Python library for developing games and other visually-rich applications. It supports windowing, user interface event handling, Joysticks, OpenGL graphics, loading images and videos, playing sounds and music.

Hupper is an integrated process monitor that will track changes to any imported Python files in sys.modules as well as custom paths. When files are changed the process is restarted.

Python-GSSAPI provides both low-level and high level wrappers around the GSSAPI C libraries. While it focuses on the Kerberos mechanism, it should also be usable with other GSSAPI mechanisms.

Mizani is a Python package for creating data visualizations. It provides functions and tools to help with the creation of visually appealing and informative visualizations, including scales, transformations and color palettes.

The SciPy library is one of the core packages that make up the SciPy stack. It provides many user-friendly and efficient numerical routines such as routines for numerical integration and optimization.

Pysam is a Python module for reading and manipulating files in the SAM/BAM format. Pysam is a lightweight wrapper of the SAMtools C API. It also includes an interface for tabix.

Convert GeoJSON to WKT/WKB (Well-Known Text/Binary) or GeoPackage Binary, and vice versa. Extended WKB/WKT are also supported. Conversion functions are exposed through idiomatic load/loads/dump/dumps interfaces.

Pygame is a set of Python modules designed for writing games. It adds functionality on top of the SDL library, allowing you to create games and multimedia programs in the Python language.

This library allows the user to define a command-line interface from a program's help message rather than specifying it programmatically with command-line parsers like getopt and argparse.

This package provides a Python extension that wraps Google's RE2 regular expression library. It implements many of the features of Python's built-in re module with compatible interfaces.

MyGene.Info provides simple-to-use REST web services to query/retrieve gene annotation data. It's designed with simplicity and performance emphasized. Mygene is a Python wrapper to access MyGene.Info services.

This package provides a system to solve probabilistic logic programs with clingo. It can solve the reasoning tasks of finding the most probable model as well as finding all models and their probabilities.

A Procfile is a file which describes how to run an application consisting of several processes. honcho starts all listed processes. The output of all running processes is collected by honcho and displayed.

cliapp is a Python framework for command line programs. It contains the typical stuff such programs need to do, such as parsing the command line for options, and iterating over input files.