Directory

Open Source Packages

Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.

5929 packages

All Packages

84Health
Tool PyPI

ty

An extremely fast Python type checker and language server written in Rust.

19,688
MIT
Used by 2
91Health
Tool PyPI

PyInstaller

Bundle a Python application and all its dependencies into a single standalone package or executable.

13,095
Other
Used by 2
86Health
Framework PyPI

Django Ninja

Fast, async-ready, OpenAPI-first REST framework built on Django and Python type hints

9,187
MIT
Used by 2
85Health
Framework PyPI

ModelScope

Alibaba's open model-hub library for NLP, CV, speech, and multi-modal AI models.

9,134
Apache 2.0
Used by 2
94Health
Framework PyPI

Apache Beam

A unified programming model for defining batch and streaming data-parallel pipelines

8,662
Apache 2.0
Used by 2
72Health
Tool PyPI

Bandit

A static analysis tool that scans Python code for common security issues.

8,259
Apache 2.0
Used by 2
51Health
Framework PyPI

Graphene

Build GraphQL schemas and types in Python quickly, with built-in Relay support.

8,238
MIT
Used by 2
91Health
Tool PyPI

Maturin

Build and publish Rust crates with PyO3, cffi, and uniffi bindings as Python wheels

5,800
Apache 2.0
Used by 2
90Health
Tool npm

moon

A Rust-based build system and monorepo orchestrator that manages toolchains, tasks, caching, and CI pipelines across the JavaScript, TypeScript, and polyglot ecosystem.

4,100
MIT
Used by 2
87Health
Tool PyPI

pipdeptree

Command-line utility that displays installed Python packages as a dependency tree.

3,022
MIT
Used by 2
53Health
Framework PyPI

Flask-RESTX

Flask extension for building fully documented REST APIs with Swagger/OpenAPI out of the box

2,234
BSD 3
Used by 2
67Health
Tool PyPI

pyflakes

A fast, false-positive-averse Python linter that finds real errors without ever complaining about style.

1,459
MIT
Used by 2
92Health
Tool PyPI

setuptools-scm

Derive your Python package version automatically from Git and Mercurial tags.

952
MIT
Used by 2
43Health
Tool PyPI

incremental

A CalVer version manager for your Python projects.

144
MIT
Used by 2
89Health
Framework PyPI

Scrapling

Adaptive Python web scraping framework with anti-bot fetchers and a spider crawling engine

80,950
BSD 3
Used by 1
88Health
Tool PyPI

OCRmyPDF

Adds a searchable OCR text layer to scanned PDFs and images, producing validated PDF/A output by default.

34,762
MPL-2.0
Used by 1
91Health
Framework PyPI

PyTorch Lightning

The deep learning framework that separates PyTorch research code from engineering boilerplate, scaling from CPU to multi-node GPU clusters without code changes.

31,341
Apache 2.0
Used by 1
93Health
Framework PyPI

fastai

A high-level deep learning framework that layers state-of-the-art training APIs on top of PyTorch.

28,134
Apache 2.0
Used by 1
49Health
Tool PyPI

cookiecutter

A cross-platform command-line utility that scaffolds new projects from Jinja2-powered templates.

25,087
BSD 3
Used by 1
90Health
Tool PyPI

pipenv

The official Python packaging tool that merges pip and virtualenv into one workflow with automatic, hash-locked dependency resolution.

25,032
MIT
Used by 1
90Health
Tool PyPI

marimo

A reactive Python notebook that's reproducible, git-friendly, and deployable as scripts or apps.

22,761
Apache 2.0
Used by 1
92Health
Framework PyPI

DeepEval

A Pytest-like open-source framework for unit-testing and evaluating LLM applications with research-backed metrics.

18,265
Apache 2.0
Used by 1
93Health
Tool PyPI

dagster-webserver

The web server that powers Dagster's UI, dashboard, and GraphQL API for pipelines and assets.

16,150
Apache 2.0
Used by 1
89Health
Framework PyPI

Agent Framework Core

Microsoft's core Python package for building and orchestrating production-grade AI agents

13,514
MIT
Used by 1

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