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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PyAV
Pythonic bindings for FFmpeg's audio, video, subtitle, and container libraries.
fpdf2
A pure-Python library for generating and manipulating PDF documents, with text, images, tables, barcodes, SVG, and digital signing built in.
requests-toolbelt
A collection of utilities extending Python's Requests library for HTTP
uuid-utils
A Rust-powered, drop-in replacement for Python's uuid module that generates UUIDv1-v8 much faster than the standard library.
tinycss2
Low-level CSS Syntax Level 3 parser and generator for Python
SQLModel
One model for SQLAlchemy and Pydantic, built by the creator of FastAPI to kill duplicate schema code.
instructor
Get reliable, validated structured JSON from any LLM provider using Pydantic models and automatic retries.
Apache DataFusion
The extensible, Arrow-native SQL and DataFrame query engine for building fast analytical systems in Rust.
librosa
A Python library for audio and music signal analysis, providing the core DSP building blocks for music information retrieval (MIR) systems.
lark
A modern parsing toolkit for Python supporting Earley, LALR(1), and CYK parsers with automatic tree construction.
FontTools
Python library for manipulating TrueType, OpenType, and other font formats
types-pytz
PEP 561 type stubs that add static typing to the Python pytz timezone library
types-toml
PEP 561 type stubs that add static typing to the Python toml library
Flask-SQLAlchemy
The official SQLAlchemy integration for Flask, adding scoped sessions, multi-database binds, and Flask-aware model conventions.
pycryptodome
A self-contained, low-level Python library of cryptographic primitives — ciphers, hashes, MACs, and public-key algorithms — with no OpenSSL dependency.
django-environ
Configure Django apps with twelve-factor environment variables and URL-based settings.
kombu
A Python messaging library giving Celery and other apps one high-level API over AMQP, Redis, SQS, and a dozen other broker transports.
mkdocstrings
MkDocs plugin that automatically generates API documentation from your source code and docstrings.
django-celery-beat
Store and manage Celery periodic task schedules in the Django ORM, editable from the Django admin.
python-user-agents
Detects mobile, tablet, and PC devices — and their touch, bot, and browser capabilities — by parsing HTTP user agent strings.
Flask-WTF
Simple integration of Flask and WTForms with built-in CSRF, file upload, and reCAPTCHA support
Flask-CORS
Cross-Origin Resource Sharing (CORS) support for Flask applications
jsonpath-ng
A standard-compliant JSONPath implementation for Python with arithmetic operators, AST manipulation, and in-place updates.
Griffe
Extract signatures and structure from entire Python programs for API docs and breaking-change detection.