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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FastAPI
A modern, high-performance Python web framework for building APIs with automatic validation, serialization, and interactive docs.
rich
A Python library for rendering rich text, tables, progress bars, and syntax-highlighted code in the terminal.
Ruff
An extremely fast Python linter and code formatter, written in Rust, built as a drop-in replacement for Flake8, Black, isort, and dozens of plugins.
websockets
Build correct, fast WebSocket servers and clients in Python with asyncio, threading, or Sans-I/O APIs.
Typer
Typer is a Python library for building CLI applications, using type hints to generate arguments, options, validation, help text, and shell completion automatically.
Celery
Distributed task queue for running asynchronous jobs, scheduled work, and complex workflows across Python applications at scale.
isort
Automatically sorts and organizes Python import statements
Markdown
The reference Python implementation of John Gruber's Markdown, with a pluggable extension system for converting text to HTML.
flake8
The CLI linter that wraps PyFlakes, pycodestyle, and McCabe complexity checks into a single Python style and error checker.
Capacitor
Build native iOS, Android, and Progressive Web Apps from a single web codebase
OAuthLib
Generic, spec-compliant OAuth1, OAuth2, and OpenID Connect implementation for Python
@capacitor/app
The official Capacitor plugin for app lifecycle events, deep links, and app state
tree-sitter-java
A fast, incremental Java grammar for the tree-sitter parsing library
quicktype
Generate strongly-typed models and serializers from JSON, Schema, TypeScript, or GraphQL
pendulum
A drop-in replacement for Python's datetime with timezone-aware objects by default and a friendlier API.
fake-useragent
Up-to-date user-agent string faker backed by a real-world browser usage database, bundled offline.
fpdf2
A pure-Python library for generating and manipulating PDF documents, with text, images, tables, barcodes, SVG, and digital signing built in.
PySpark
Python API for Apache Spark, the unified engine for large-scale distributed data processing
kombu
A Python messaging library giving Celery and other apps one high-level API over AMQP, Redis, SQS, and a dozen other broker transports.
django-celery-beat
Store and manage Celery periodic task schedules in the Django ORM, editable from the Django admin.
react-native-pdf
A cross-platform PDF viewer component for React Native, with zoom, paging, password protection, and native text selection.
py-amqp
A pure Python client implementing the AMQP 0.9.1 protocol, powering RabbitMQ transport for Celery and Kombu.
Databricks SQL Connector for Python
Thrift-based Python client for connecting to Databricks clusters and SQL warehouses
FlatBuffers
Google's memory-efficient, zero-copy serialization library for cross-language data exchange