S3Fs

S3Fs is a Pythonic filesystem interface to Amazon S3, built on top of aiobotocore and fsspec. The top-level class S3FileSystem exposes familiar file-system operations (ls, cp, mv, du, glob, put, get) and a file open() API that emulates Python's standard file protocol, making it a drop-in for libraries like pandas, dask, and gzip that accept file-like objects. It also supports S3-compatible stores (MinIO, Ceph, R2) via the endpoint_url parameter. Versions follow calendar versioning (YYYY.MM.PATCH); the current release is 2026.2.0, released February 2026, with roughly monthly cadence.