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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DataComPy
Compare Pandas, Polars, Spark, and Snowpark DataFrames with human-readable difference reports.
Flask-Mail
A lightweight Flask extension that adds SMTP email sending to your application with a simple Message API.
cloudpathlib
pathlib-style Python classes for S3, Google Cloud Storage, and Azure Blob Storage
Loky
A robust, cross-platform reusable process pool executor for Python, built as the parallel backend for joblib.
django-migration-linter
Detects backward-incompatible Django migrations before they break deploys, CI, or zero-downtime rollbacks.
simpleeval
A single-file Python library for safely evaluating user-supplied expressions without exposing full eval() access.
Meilisearch Python
Official Python client for the Meilisearch search engine
primp
Python HTTP client that impersonates real browser TLS and HTTP/2 fingerprints.
aiodns
A simple asynchronous DNS resolver for Python's asyncio built on pycares
aiofile
Real asynchronous file operations for Python asyncio, backed by io_uring, libaio, and thread pools.
chevron
A fast, spec-compliant Python implementation of the Mustache templating language.
flatten-json
Flatten and unflatten deeply nested JSON in Python
sgqlc
A simple, typed GraphQL client for Python that builds queries programmatically.
native-tls
A safe, ergonomic Rust wrapper over each platform's native TLS implementation.
aiodocker
AsyncIO Python client for the Docker Engine HTTP API, built on aiohttp.
timezonefinder
Fast, fully offline timezone lookup for any WGS84 coordinate on earth
graphql-core
A Python 3 port of the GraphQL.js reference implementation of GraphQL.
FalconPy
The official Python SDK for the CrowdStrike Falcon platform, wrapping every OAuth2 API operation in typed, testable service classes.
pytest-flask
A pytest plugin with ready-made fixtures for testing Flask applications end to end.
srsly
Unified, cross-platform JSON, JSONL, MessagePack, Pickle, and YAML serialization for Python
wasabi
A lightweight, zero-dependency console printing and formatting toolkit for Python
Python Xlib
A pure-Python implementation of the X11 protocol for talking to an X server.
deepgram-python-sdk
Official Python SDK for Deepgram's speech-to-text, text-to-speech, and voice agent APIs, with sync, async, and WebSocket support.
cymem
A Cython memory pool for RAII-style, garbage-collector-tied memory management
