Show HN: Capo-S3 – Modern S3 client for Python

Category: library

Tags: aws, s3, sdk, python, async, typeddict, codegen

Score: 7.3/10 (Innovation: 6, Technical: 8, Documentation: 9, Utility: 6)

Capo-S3 is a modern, async-first Python SDK for AWS S3 generated from official Smithy models, offering fully typed TypedDict inputs/outputs and zero runtime reflection overhead. It stands out with support for both async and sync usage, trio, Pyodide/WASM, and fine-grained configuration via environment variables or profiles, making it a credible alternative to boto3 for developers seeking type safety and performance.

Target audience: backend devs, data engineers, devops

Repository: https://pypi.org/project/capo-s3/ · Python · MIT · 64 stars

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