towncrier is a utility to produce useful, summarized news files (also known as changelogs) for a project.

LibCST parses Python source code as a CST tree that keeps all formatting details (comments, whitespaces, parentheses, etc). It's useful for building automated refactoring (codemod) applications and linters. LibCST creates a compromise between an Abstract Syntax Tree (AST) and a traditional Concrete Syntax Tree (CST). By carefully reorganizing and naming node types and fields, LibCST creates a lossless CST that looks and feels like an AST.

This package contains codecs for transliterating ISO 10646 texts into best-effort representations using smaller coded character sets (ASCII, ISO 8859, etc.).

pyaml is a PyYAML based python module to produce pretty and readable YAML-serialized data.

This is an implementation of ASN.1 types and codecs in Python. It is suitable for a wide range of protocols based on the ASN.1 specification.

TatSu (竜) takes a grammar in a variation of Extended Backus-Naur Form (EBNF) as input, and outputs a memoizing Parsing Expression Grammar (PEG) or Packrat parser in Python.

This package provides 16 word stemmer algorithms generated from Snowball algorithms. It includes the 15 original ones plus the Poerter English stemmer.

This Python module provides line editing functions similar to the default Emacs-style ones of GNU Readline. Unlike the Python standard library's readline package, this one allows access to those capabilities in settings outside of a standard command-line interface. It is especially well-suited to interfacing with Urwid, due to a shared syntax for describing key inputs.

Currently, all stateless Readline commands are implemented. Yanking and history are not supported.

Ipywidgets are interactive HTML widgets for Jupyter notebooks and the IPython kernel. Notebooks come alive when interactive widgets are used. Users gain control of their data and can visualize changes in the data.

Hnswlib is a header-only C++ implementation of fast approximate nearest neighbor search with Python bindings.

PyYAML is a YAML parser and emitter for Python. PyYAML features a complete YAML 1.1 parser, Unicode support, pickle support, capable extension API, and sensible error messages. PyYAML supports standard YAML tags and provides Python-specific tags that represent an arbitrary Python object.

Curio is a coroutine-based library for concurrent Python systems programming. It provides standard programming abstractions such as as tasks, sockets, files, locks, and queues.

This Python library allows reading and writing to the Excel XLSX, XLSM, XLTX and XLTM file formats that are defined by the Office Open XML (OOXML) standard.

The cytoolz package implements the same API as provided by toolz. The main differences are that cytoolz is faster and cytoolz offers a C API that is accessible to other projects developed in Cython.

pypandoc is a thin Python wrapper around pandoc and pandoc-citeproc.

This package provides a data-structure parameterization system written for embedding context in JSON objects.

Pabot is a parallel executor for Robot Framework tests.

This Python module provides a solver-agnostic abstraction for working with SMT formulas. For example, it allows manipulation and solving such formulas.

This package provides a Python utility to easily deploy multiple versions of MkDocs-powered docs to a Git branch. It is suitable for deploying to Github via gh-pages.

This is a Python package for easy throttling with asyncio support.

The Python Imaging Library adds image processing capabilities to your Python interpreter. This library provides extensive file format support, an efficient internal representation, and fairly powerful image processing capabilities. The core image library is designed for fast access to data stored in a few basic pixel formats. It should provide a solid foundation for a general image processing tool.

This package implements fast and direct raster I/O for use with Numpy and SciPy.

This package provides a plugin with support for the python-black formatter for the Python LSP Server.

importlib_resources is a backport of Python 3's standard library importlib.resources module for Python 2.7, and Python 3.