Directory

Open Source Packages

Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.

5929 packages

All Packages

77Health
Framework PyPI

behave

A Python behavior-driven development framework that runs Gherkin feature files against step definitions written in plain Python.

3,529
Other
Used by 3
87Health
Library PyPI

testcontainers-python

Throwaway Docker containers for real integration tests, driven straight from Python.

2,294
Apache 2.0
Used by 3
51Health
Library PyPI

types-boto3

Complete, auto-generated type annotations for every boto3 AWS service client, enabling full IDE autocomplete and mypy/pyright checking.

670
MIT
Used by 3
48Health
Library PyPI

ua-parser

Parse browser, OS, and device data out of raw user agent strings, with pluggable fast-path resolvers.

649
Apache 2.0
Used by 3
70Health
Library PyPI

billiard

A hardened fork of Python's multiprocessing library that powers Celery's worker pool with extra reliability fixes.

434
BSD 3
Used by 3
68Health
Library PyPI

vine

Lightweight Python promise implementation powering Celery's async callback chains

127
BSD 3
Used by 3
94Health
Framework PyPI

Apache Beam

A unified programming model for defining batch and streaming data-parallel pipelines

8,662
Apache 2.0
Used by 2
92Health
Library PyPI

django-stubs

PEP 484 type stubs and a custom mypy plugin that bring precise static typing to Django's dynamic ORM and framework internals.

1,972
MIT
Used by 2
60Health
Library Cargo

jni-rs

Complete, safe Rust bindings to the Java Native Interface for two-way Rust and Java interop.

1,597
Apache 2.0
Used by 2
38Health
Tool PyPI

ghp-import

A small CLI that copies a built docs directory straight onto your repo's gh-pages branch.

626
Apache 2.0
Used by 2
47Health
Library PyPI

starlette-context

Store and access per-request context data anywhere in a Starlette or FastAPI app.

608
MIT
Used by 2
86Health
Library PyPI

tree-sitter-language-pack

Precompiled tree-sitter parsers and queries for 306+ languages in one install

466
MIT
Used by 2
42Health
Library PyPI

fastuuid

Rust-powered CPython bindings that generate and parse UUIDs faster than Python's stdlib, with a fully drop-in compatible API.

189
BSD 3
Used by 2
68Health
Library PyPI

HTTPX OAuth

Async OAuth2 client for Python built on HTTPX with ready-made provider clients.

183
MIT
Used by 2
59Health
Library PyPI

python-gssapi

Python bindings for RFC 2743/2744 GSSAPI, giving Python code direct, Pythonic access to Kerberos and other GSSAPI security mechanisms.

116
Other
Used by 2
65Health
Tool PyPI

toml-sort

A command-line utility and Python library that sorts and formats TOML files while preserving comments.

116
MIT
Used by 2
52Health
Library PyPI

ANTLR4 Python3 Runtime

The Python 3 runtime that generated ANTLR parsers and lexers depend on at execution time.

19,003
BSD 3
Used by 1
44Health
Library PyPI

undetected-chromedriver

A drop-in Selenium Chrome WebDriver replacement that patches the chromedriver binary and browser fingerprint to evade bot-mitigation systems.

12,840
GPL 3.0
Used by 1
71Health
Library PyPI

IceCream

A Python debugging library that prints both an expression and its value, so you never have to write print("x:", x) again.

10,108
MIT
Used by 1
67Health
Framework Cargo

Extism

The framework for building with WebAssembly: load, run, and extend apps with wasm plugins.

5,758
BSD 3
Used by 1
86Health
Library PyPI

Tortoise ORM

Familiar asyncio ORM for Python, built with relations in mind

5,629
Apache 2.0
Used by 1
41Health
Library PyPI

nodriver

Async browser automation and web scraping that talks directly to Chromium via CDP, with no Selenium, WebDriver, or ChromeDriver required.

4,742
AGPL 3.0
Used by 1
93Health
Library PyPI

Kiota Authentication Azure

Azure Identity-backed authentication provider for Python API clients generated by Microsoft Kiota.

3,824
MIT
Used by 1
50Health
Library PyPI

PyPika

A Python SQL query builder that constructs expressive, vendor-flexible SQL using a fluent builder API.

2,926
Apache 2.0
Used by 1

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