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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psutil
Cross-platform Python library for retrieving process and system utilization data.
tqdm
A fast, extensible progress bar for Python loops and CLI pipelines, with negligible overhead.
idna
Internationalized Domain Names for Python — IDNA 2008 and UTS #46 encoding and decoding
tenacity
A general-purpose Python retrying library that adds configurable retry behavior to almost anything
Charset Normalizer
A pure-Python universal charset detector that turns text of unknown encoding into clean Unicode.
attrs
Python classes without boilerplate — generate init, repr, equality, and more from declarative field definitions.
filelock
A platform-independent file lock for Python that supports the with-statement.
sniffio
A tiny Python library that detects which async framework (trio, asyncio, or curio) your code is currently running under.
pyparsing
Build recursive-descent parsers in Python without a separate grammar file
pluggy
The minimalist, production-ready plugin and hook system that powers pytest, tox, and devpi
backoff
Python function decorators that retry calls on exceptions or bad return values, with exponential, fibonacci, or constant backoff and jitter.
distro
Linux distribution detection library and CLI, replacing Python's removed platform.linux_distribution()
Faker
A Python library that generates realistic fake data for testing, seeding, and anonymizing datasets across 70+ locales.
python-zstandard
Python bindings for the Zstandard (zstd) compression library, exposing the full C API through a Pythonic, high-performance interface.
soupsieve
The pure-Python CSS4 selector engine that powers Beautiful Soup's select() and select_one() methods.
aiosignal
A lightweight async callback registry that turns a mutable list of coroutine receivers into a frozen, awaitable dispatch signal.
watchfiles
Simple, modern, and fast file watching and code-reload for Python, powered by a Rust core built on the `notify` crate
Blinker
Fast Python in-process signal/event dispatching for decoupled object-to-object notifications
tldextract
Accurately splits any URL or hostname into subdomain, domain, and public suffix using the Public Suffix List.
fake-useragent
Up-to-date user-agent string faker backed by a real-world browser usage database, bundled offline.
uuid-utils
A Rust-powered, drop-in replacement for Python's uuid module that generates UUIDv1-v8 much faster than the standard library.
lark
A modern parsing toolkit for Python supporting Earley, LALR(1), and CYK parsers with automatic tree construction.
python-user-agents
Detects mobile, tablet, and PC devices — and their touch, bot, and browser capabilities — by parsing HTTP user agent strings.
jsonpath-ng
A standard-compliant JSONPath implementation for Python with arithmetic operators, AST manipulation, and in-place updates.
