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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Gunicorn
A fast, lightweight pre-fork WSGI and ASGI HTTP server for running Python web apps in production on UNIX.
OpenTelemetry Python SDK
The reference implementation of the OpenTelemetry API for Python - traces, metrics, and logs
toml
A native Rust encoder and decoder for TOML with first-class Serde support.
mypy
Optional static type checker that catches Python bugs before you run your code
websockets
Build correct, fast WebSocket servers and clients in Python with asyncio, threading, or Sans-I/O APIs.
quote
The quasi-quoting library that turns Rust syntax into token streams for procedural macros.
Psycopg
The modern PostgreSQL adapter for Python, with native async and pipeline support
Flask
A lightweight WSGI web framework for Python that scales from a single file to complex applications.
scikit-learn
Simple and efficient tools for machine learning and data analysis in Python.
axum
Ergonomic and modular HTTP routing and request-handling framework for Rust, built on Tokio, Hyper, and Tower.
LiteLLM
Call 100+ LLM APIs from OpenAI to Anthropic to Bedrock through one unified, OpenAI-format Python interface.
Alembic
Database migrations tool for SQLAlchemy with autogenerate and transactional DDL
pydantic-settings
Type-safe application settings management for Python, built on Pydantic models.
Typer
Typer is a Python library for building CLI applications, using type hints to generate arguments, options, validation, help text, and shell completion automatically.
asyncpg
A fast PostgreSQL database client library for Python built directly on asyncio, implementing the PostgreSQL binary wire protocol natively for high-throughput async applications.
once_cell
Single-assignment cells and lazy statics for Rust, without macros or unsafe code
sentry-sdk
The official Python SDK for Sentry error tracking, performance monitoring, and tracing.
serde_yaml
Strongly typed YAML serialization and deserialization for Rust, built on Serde
idna
Internationalized Domain Names for Python — IDNA 2008 and UTS #46 encoding and decoding
Django
The high-level Python web framework that turns database models into secure, working web applications in record time.
pypdf
A pure-Python library for splitting, merging, cropping, transforming, and extracting content from PDF files.
Tower
Modular, reusable Rust components for building async network clients and servers
tenacity
A general-purpose Python retrying library that adds configurable retry behavior to almost anything
rustls
A modern, memory-safe TLS library for Rust with no unsafe code and no legacy crypto by default.
