Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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tree-sitter-python
A fast, incremental Python grammar for the tree-sitter parsing library
modal-client
Deploy Python functions to serverless GPU and CPU cloud infrastructure with a single decorator.
distro
Linux distribution detection library and CLI, replacing Python's removed platform.linux_distribution()
Polars
Blazingly fast multi-threaded DataFrame library built in Rust with Python, Node.js, and R bindings
Elasticsearch Python Client
The official Python client for querying, indexing, and managing an Elasticsearch cluster
websocket-client
A low-level, dependency-free WebSocket client for Python supporting both synchronous and event-driven connections.
feedparser
Parses RSS, Atom, RDF, CDF, and JSON feeds into one normalized Python dictionary.
pymilvus
The official Python SDK for Milvus, the open-source vector database for embedding-based similarity search.
jsonschema
A high-performance JSON Schema validator for Rust with Python, Ruby, and WASM bindings
OpenAI Agents SDK
OpenAI's provider-agnostic Python framework for building multi-agent LLM workflows with tools, guardrails, and tracing.
isort
Automatically sorts and organizes Python import statements
Werkzeug
The comprehensive WSGI utility library that powers Flask and countless Python web apps.
gevent
Coroutine-based concurrency for Python, built on greenlets and a fast libev/libuv event loop.
json_repair
Repair malformed JSON from LLMs, APIs, logs, and user input — a drop-in fallback for json.loads().
python-socketio
Python implementation of the Socket.IO realtime protocol for both servers and clients.
Markdown
The reference Python implementation of John Gruber's Markdown, with a pluggable extension system for converting text to HTML.
msgspec
A fast, zero-cost serialization and validation library for JSON, MessagePack, YAML, and TOML in Python.
flake8
The CLI linter that wraps PyFlakes, pycodestyle, and McCabe complexity checks into a single Python style and error checker.
html2text
Converts HTML into clean, readable Markdown-formatted plain text, as both a Python library and a CLI tool.
PyMdown Extensions
A rich extension pack for Python-Markdown adding tabs, superfences, emoji, and more
aioboto3
An async wrapper around boto3's high-level AWS resources, backed by aiobotocore
Flask-CORS
Cross-Origin Resource Sharing (CORS) support for Flask applications
argon2-cffi
Secure, high-level password hashing for Python using Argon2
Faker
A Python library that generates realistic fake data for testing, seeding, and anonymizing datasets across 70+ locales.
