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A curated list of awesome Python libraries, which implement models, schemas, serializers/deserializers, ODM's/ORM's, Active Records or similar patterns.

• Awesome Python Models
  • Model/Schema
  • ODM/ORM/Active Record
  • Data/validation
• Other resources
• Other Awesome Lists
• Contributing

Libraries implementing some kind of model, letting you to serialize/deserialize python object to some data structures.

• 👻ascetic - Ascetic, a lightweight Python datamapper ORM.
• attrs - Python Classes Without Boilerplate.
• booby - data modeling and validation Python library.
• causalmodels - causal modeling in Python.
• colander - A serialization/deserialization/validation library for strings, mappings and lists.
• composite - Declarative XML files parse, unparse with help of lxml library.
• datastore.objects - simple object mapper on top of datastore (not relational).
• dirty-models - Dirty model for python.
• dejavu - Dejavu is a thread-safe Object-Relational Mapper for Python applications.
• gnarl - Lightweight module to define serializable, schema-validated classes
• guts - Lightweight declarative YAML and XML data binding for Python.
• jsonmapper - Python JSON<->Object mapper.
• jsonmodels - jsonmodels is library to make it easier for you to deal with structures that are converted to, or read from JSON.
• jsonobjects - jsonobjects allows you to declaratively specify how to extract and convert elements from a JSON document.
• jsonobject - A simple json-object mapping for Python.
• 👻jsonpickle - Python library for serializing any arbitrary object graph into JSON.
• kim - A JSON Serialization and Marshaling framework.
• lazycontract - Python library to define declarative contracts for serialization and deserialization.
• lupin - Python document object mapper (load python object from JSON and vice-versa).
• marshmallow - A lightweight library for converting complex objects to and from simple Python datatypes.
• 👻metaparams - Python meta framework for Parameters in classes.
• micromodels - Declarative dictionary-based model classes for Python.
• monk - An unobtrusive data modeling, manipulation and validation library.
• normalize - A toolkit for wrapping network data in Python objects.
• model-api - For modeling remote APIs in an ORM fashion.
• object-mapper - ObjectMapper is a class for automatic object mapping in Python.
• param - Make your Python code clearer and more reliable by declaring Parameters.
• 👻prettyrecord - Structures like SQLAlchemy's declarative_base or Django's models in your project!
• pydantic - Data validation using Python 3.6 type hinting.
• pyschema - Python library for class-based schema definition, object serialization and data validation.
• python-json - Python library for easily JSON encoding/decoding complex class-based Python models, using an arbitrarily complex (but easy to write!) mapping schema.
• python-docar - A library for document oriented architectures.
• resource-api - A framework that allows developers decoratively define resources and relationships between them.
• schematics - Python Data Structures for Humans™.
• schema - A generic declarative schema system.
• scheme - A declarative schema framework for Python.
• simple-models - Simple models - keep your API messages in shape with validation and handy descriptors based object interface.
• simple_model - a very simple model framework for python.
• yorm - Automatic object-YAML mapping for Python.

Libraries, implementing ODM/ORM/Active Record patterns, letting you to work with external objects (REST, DB) like normal python instances.

• acid - SQLite for NoSQL.
• 👻butterdb - butterdb is a Python object mapper for Google Drive Spreadsheets.
• django - The Web framework for perfectionists with deadlines (includes ORM layer).
• finch - Asynchronous RESTful API consumer for Python.
• flywheel - Object mapper for Amazon's DynamoDB.
• kev - Python ORM for key-value stores. Currently supported backends are Redis, S3, and a S3/Redis hybrid backend.
• modular-odm - A database-agnostic Object-Document Mapper for Python.
• mongoengine - A Python Object-Document-Mapper for working with MongoDB.
• orator - The Orator ORM provides a simple yet beautiful ActiveRecord implementation.
• pony - Pony Object Relational Mapper.
• peewee - a small, expressive orm -- supports postgresql, mysql and sqlite.
• py-rest-orm - Generic Python REST ORM. Inspired by Django. Powered by Requests.
• python-rest-model - A standard way to consume a RESTful service, inspired by Django models.
• pyresto - A generic ORM framework for RESTful APIs.
• pymodm - A Pythonic, object-oriented interface for working with MongoDB.
• PynamoDB - A pythonic interface to Amazon's DynamoDB.
• redisco - A Python Library for Simple Models and Containers Persisted in Redis.
• remodel - Very simple yet powerful and extensible Object Document Mapper for RethinkDB, written in Python.
• restorm - RestORM allows you to interact with resources as if they were objects.
• 👻storm - Storm is an object-relational mapper (ORM) for Python developed at Canonical.
• 👻sqlobject - SQLObject is a popular Object Relational Manager for providing an object interface to your database, with tables as classes, rows as instances, and columns as attributes.
• wukong - An ORM Client library for SolrCloud.
• yadm - Yet Another Document Mapper (ODM) for MongoDB.
• walrus - Lightweight Python utilities for working with Redis.

Libraries for validating custom data structures.

• cerberus - Lightweight, extensible data validation library for Python.
• destructure - Easy declarative schema validation with optional name-binding.
• jsonschema - jsonschema is an implementation of JSON Schema for Python (supporting 2.7+ including Python 3).
• pyschemes - PySchemes is a library for validating data structures in Python.
• pyvaru - Rule based data validation library for python 3.
• required - Required is a simple library which allows you to validate dependencies across multiple fields.
• schema - schema is a library for validating Python data structures, such as those obtained from config-files, forms, external services or command-line parsing, converted from JSON/YAML (or something else) to Python data-types.
• strictyaml - Type-safe YAML parser and validator.
• valideer - Lightweight data validation and adaptation Python library.
• validr - A simple, fast, extensible python library for data validation.
• voluptuous - Voluptuous, despite the name, is a Python data validation library. It is primarily intended for validating data coming into Python as JSON, YAML, etc.

• fullstackpython: Object-relational mappers (ORMs)
• Python ORM/ODM Examples, For The Sleepy
• martinfowler: Active Record
• martinfowler: Data Mapper
• wiki: Object-relational mapping
• Higher Level Database Programming

List of lists.

• Monty
  • awesome
  • lists
• Python
  • awesome-python
  • awesome-sqlalchemy
  • pycrumbs
  • python-github-projects
  • python_reference
  • pythonidae

If you know some project/library that is not listed here, just let me know! Or even better, create a pull request.