cattrs: Flexible Object Serialization and Validation

Because validation belongs to the edges.

cattrs is a Swiss Army knife for (un)structuring and validating data in Python. In practice, that means it converts unstructured dictionaries into proper classes and back, while validating their contents.
Example

cattrs works best with attrs classes, and dataclasses where simple (un-)structuring works out of the box, even for nested data, without polluting your data model with serialization details:

Scriv is a command-line tool for helping developers maintain useful changelogs. It manages a directory of changelog fragments. It aggregates them into entries in a CHANGELOG file.

Make your functions return something meaningful, typed, and safe!
Features

Brings functional programming to Python land

Provides a bunch of primitives to write declarative business logic

Enforces better architecture

Fully typed with annotations and checked with mypy, PEP561 compatible

Adds emulated Higher Kinded Types support

Provides type-safe interfaces to create your own data-types with enforced laws

Has a bunch of helpers for better composition

Pythonic and pleasant to write and to read 🐍

Support functions and coroutines, framework agnostic

Easy to start: has lots of docs, tests, and tutorials

Tide is a friendly HTTP server built for casual Rustaceans and veterans alike. It's completely modular, and built directly for async/await. Whether it's a quick webhook, or an L7 load balancer, Tide will make it work.

NetworkX is a Python package for the creation, manipulation, and study of the structure, dynamics, and functions of complex networks.

Lightweight Python utilities for working with Redis.

Render JavaScript-rendered page as HTML using headless Chrome

dateparser provides modules to easily parse localized dates in almost any string formats commonly found on web pages.

boltons should be builtins.

Boltons is a set of pure-Python utilities in the same spirit as — and yet conspicuously missing from — the the standard library, including:

    Atomic file saving, bolted on with fileutils
    A highly-optimized OrderedMultiDict, in dictutils
    Two types of PriorityQueue, in queueutils
    Chunked and windowed iteration, in iterutils
    A full-featured TracebackInfo type, for representing stack traces, in tbutils
    A lightweight UTC timezone available in timeutils.
    Recursive mapping for nested data transforms, with remap