Declarative Python Packages

plotly

The interactive graphing library for Python :sparkles:

glom

☄️ Python's nested data operator (and CLI), for all your declarative restructuring needs. Got data? Glom it! ☄️

flyteidl

Type-safe, distributed orchestration of agents, ML pipelines, and real-time inference on your k8s — in pure Python with async/await, also other languages (rust, go and ts)

pyccolo

Declarative instrumentation for Python.

drf-access-policy

Declarative access policies/permissions modeled after AWS' IAM policies.

sqlalchemy-declarative-extensions

Library to declare additional kinds of objects not natively supported by SqlAlchemy/Alembic.

kapitan

Generic templated configuration management for Kubernetes, Terraform and other things

properties

An organizational aid and wrapper for validation and tab completion of class properties/traits.

chart-studio

The interactive graphing library for Python :sparkles:

hydra-etl

Declarative ETL pipelines in YAML, validated before they run. CLI, REST API, visual Studio, MCP server.

datajoint

Relational Workflows: where database schemas define executable data pipelines.

grappa

Behavior-oriented, expressive, human-friendly Python assertion library for the 21st century

decl-lang

Declarative Language

plotly-geo

The interactive graphing library for Python :sparkles:

model-compose

Declarative AI pipelines in one YAML file. Tokens, audio chunks, and video frames flow between isolated components. Compose 100+ components for models, agents, speech, vision, and live broadcast. Run local models, cloud APIs, or both. Inspired by docker-compose.

zymi-core

The auditable MCP backend for agents — tools as declarative YAML pipelines: event-sourced, replayable, approval-gated.

argclass

Declarative CLI parser with type hints, config files, and environment variables.

nodestream

A Declarative framework for Building, Maintaining, and Analyzing Graph Data

declarative-parser

Modern, declarative argument parser for Python 3.6+

sqlalchemy-fsm

SQLAlchemy finite state machine support

env-proxy

Typed access to environment variables in Python — declarative config classes with validation, freezing, custom converters, and .env template generation.

phx-filters

Opinionated schema validation for Python - chain type-safe filters with | like UNIX pipes

aqueduct-core

Intelligent, self-healing polyglot pipelines. Declarative. Observable. Autonomous.

declarativex

Your Declarative HTTP client library on Python