Currently, PGPy can load keys and signatures of all kinds in both ASCII armored and binary formats.

It can create and verify RSA, DSA, and ECDSA signatures, at the moment. It can also encrypt and decrypt messages using RSA and ECDH.

The JavaScript Object Signing and Encryption (JOSE) technologies - JSON Web Signature (JWS), JSON Web Encryption (JWE), JSON Web Key (JWK), and JSON Web Algorithms (JWA) - collectively can be used to encrypt and/or sign content using a variety of algorithms.

python-face is a Pythonic microframework for building command-line applications.

• First-class subcommand support

• Powerful middleware architecture

• Separate parser layer

• Built-in flagfile support

• Handy testing utilities

• Themeable help display

Lark is a parser built with a focus on ergonomics, performance and resilience. Lark can parse all context-free languages. That means it is capable of parsing almost any programming language out there, and to some degree most natural languages too.

This package is a fork of Parallel Python. The Parallel Python module (pp) provides an easy and efficient way to create parallel-enabled applications for symmetric multiprocessing (SMP) computers and clusters. It features cross-platform portability and dynamic load balancing.

unyt is a Python library working with data that has physical units. It defines the unyt.array.unyt_array and unyt.array.unyt_quantity classes (subclasses of NumPy’s ndarray class) for handling arrays and scalars with units,respectively

This package provides a lightweight YAML Parser for Python. It supports only a chosen subset of the YAML format that is required to parse cookiecutter user configuration files. It does not have support for serializing into YAML and is not compatible with JSON.

CAMB is a cosmology code for calculating cosmological observables, including CMB, lensing, source count and 21cm angular power spectra, matter power spectra, transfer functions and background evolution. The code is in Python, with numerical code implemented in fast modern Fortran.

Flit is a simple way to put Python packages and modules on PyPI. Flit packages a single importable module or package at a time, using the import name as the name on PyPI. All subpackages and data files within a package are included automatically.

This package provides a library to extract data from spreadsheets using Microsoft Excel proprietary file formats .xls and .xlsx (versions 2.0 onwards). It has support for Excel dates and is Unicode-aware. It is not intended as an end-user tool.

Google Text-to-Speech (gTTS) is a Python library and CLI tool to interface with the Google Translate text-to-speech API. It lets you write spoken MP3 data to a file, a file-like object (bytestring) for further audio manipulation, or stdout.

DIPY is the paragon 3D/4D+ medical imaging library in Python. It contains generic methods for spatial normalization, signal processing, machine learning, statistical analysis and visualization of medical images. Additionally, it contains specialized methods for computational anatomy including diffusion, perfusion and structural imaging.

xlwt is a library for writing data and formatting information to older Excel files (i.e. .xls). The package itself is pure Python with no dependencies on modules or packages outside the standard Python distribution. It is not intended as an end-user tool.

This package provides a versatile binary analysis platform with the ability to perform dynamic symbolic execution as well as various static analyses directly on binaries. As such, it can be used for all kinds of reverse engineering, vulnerability discovery, exploit generation, and software testing purposes.

pdoc auto-generates API documentation that follows your project's Python module hierarchy. It requires no configuration, has first-class support for type annotations, cross-links between identifiers, comes with an integrated live-reloading web server, uses customizable HTML templates, understands numpydoc and Google-style docstrings.

This library brings the Olson tz database into Python. It allows accurate and cross platform timezone calculations using Python 2.4 or higher. It also solves the issue of ambiguous times at the end of daylight saving time. Almost all of the Olson timezones are supported.

This package provides Python bindings to the libmagic file type guesser.

Note that this module and the python-magic module both provide a magic.py file; these two modules, which are different and were developed separately, both serve the same purpose: provide Python bindings for libmagic.

Mock is a library for testing in Python. It allows you to replace parts of your system under test with mock objects and make assertions about how they have been used. This library is now part of Python (since Python 3.3), available via the unittest.mock module.

vine provides a special implementation of promises in that it can be used both for "promise of a value" and lazy evaluation. The biggest upside for this is that everything in a promise can also be a promise, e.g. filters, callbacks and errbacks can all be promises.

This Python module enables remote procedure calls, clustering, and distributed-computing. For this purpose, it makes use of object-proxying, a technique that employs python's dynamic nature, to overcome the physical boundaries between processes and computers, so that remote objects can be manipulated as if they were local.

YAPF is a formatter for Python code. It's based off of clang-format, developed by Daniel Jasper. In essence, the algorithm takes the code and reformats it to the best formatting that conforms to the style guide, even if the original code didn't violate the style guide.

The h5py package provides both a high- and low-level interface to the HDF5 library from Python. The low-level interface is intended to be a complete wrapping of the HDF5 API, while the high-level component supports access to HDF5 files, datasets and groups using established Python and NumPy concepts.

Jedi is a static analysis tool for Python that can be used in Integrated Development Environments (IDEs) and text editors. It understands Python on a deeper level than many other static analysis frameworks for Python.

Jedi understands docstrings and you can use Jedi autocompletion in your REPL as well.

silx project is to provide a collection of Python packages to support the development of data assessment, reduction and analysis applications at synchrotron radiation facilities. silx aims to provide reading/writing tools for different file formats, data reduction routines and a set of Qt widgets to browse and visualise data.