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

54Health
Library PyPI

CleverCSV

A drop-in replacement for Python's csv module that detects the dialect of messy, real-world CSV files with far higher accuracy than the standard library.

1,334
MIT
Used by 1
94Health
Framework PyPI

Bolt for Python

Slack's official Python framework for building Slack apps fast, with routing, middleware, and Socket Mode across many web stacks.

1,326
MIT
Used by 1
78Health
Library PyPI

kazoo

A production-grade, higher-level Python client for Apache ZooKeeper with pluggable async handlers and battle-tested distributed recipes.

1,322
Apache 2.0
Used by 1
82Health
Library PyPI

jsonpickle

Serializes and deserializes arbitrary Python object graphs to and from JSON, including custom classes.

1,318
BSD 3
Used by 1
79Health
Library PyPI

Redis OM Python

Declarative object mapping, validation, and rich querying for Redis in Python.

1,315
MIT
Used by 1
83Health
Library PyPI

JPype

A native bridge that gives Python programs direct, in-process access to the full Java class library and JVM.

1,293
Apache 2.0
Used by 1
89Health
Library PyPI

Strands Agents Tools

A batteries-included tool library for Strands Agents, giving LLM agents file, shell, web, memory, and AWS capabilities out of the box.

1,260
Apache 2.0
Used by 1
85Health
Framework PyPI

Cyclopts

A modern Python CLI framework that builds command-line apps from type hints.

1,255
Apache 2.0
Used by 1
76Health
Library PyPI

django-treebeard

Efficient tree-structured models for Django, with three interchangeable storage backends behind one manager API.

1,220
Apache 2.0
Used by 1
87Health
Library Cargo

rama-core

The async Service and Layer trait core that every Rama network stack builds on.

1,203
Other
Used by 1
84Health
SDK PyPI

firebase-admin-python

Google's official Python SDK for privileged server-side access to Firebase Auth, Firestore, Cloud Messaging, Storage, and Remote Config.

1,159
Apache 2.0
Used by 1
44Health
Tool PyPI

pydocstyle

A static analysis tool for checking Python docstring style against PEP 257 and related conventions.

1,116
MIT
Used by 1
46Health
Library PyPI

Captcha

A Python library that generates image and audio CAPTCHAs from text.

1,102
BSD 3
Used by 1
45Health
Library PyPI

redis-py-cluster

A Python client for Redis Cluster, extending redis-py with cluster-aware routing, pipelining, and pub/sub.

1,094
MIT
Used by 1
38Health
Library PyPI

python-devtools

Python's missing debug print command, plus pretty formatting, timing, and pytest helpers.

1,077
MIT
Used by 1
62Health
Library PyPI

mistletoe

A fast, spec-compliant, and fully extensible CommonMark parser written in pure Python.

1,063
MIT
Used by 1
61Health
SDK PyPI

Aliyun Python SDK Core

Shared core client for the Alibaba Cloud (Aliyun) V1.0 Python SDK.

1,044
Apache 2.0
Used by 1
61Health
SDK PyPI

Aliyun Python SDK KMS

Alibaba Cloud Key Management Service (KMS) client for Python.

1,044
Apache 2.0
Used by 1
78Health
Library PyPI

time-machine

Travel through time in your Python tests by mocking datetime and time at the C level.

999
MIT
Used by 1
71Health
Library PyPI

imap_tools

A high-level Python library for reading, searching, and managing email over IMAP without hand-rolling imaplib calls.

844
Apache 2.0
Used by 1
45Health
Library PyPI

netaddr

A pure-Python library for parsing, validating, and manipulating IPv4, IPv6, CIDR, and MAC/EUI network addresses.

831
Other
Used by 1
45Health
Library PyPI

django-object-actions

Add custom object tool buttons to the Django admin as easily as admin actions

812
Apache 2.0
Used by 1
49Health
Library PyPI

Segno

Dependency-free, pure Python QR Code and Micro QR Code generator with many output formats.

802
BSD 3
Used by 1
44Health
Library PyPI

feedgen

Python module to generate Atom feeds, RSS feeds, and podcasts

790
Other
Used by 1

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