Pyzstd module provides classes and functions for compressing and
decompressing data, using Facebook’s Zstandard (or zstd as short name)
algorithm.

The API style is similar to Python’s bz2/lzma/zlib modules.

Includes zstd v1.5.5 source code

Can also dynamically link to zstd library provided by system, see this
note.

Has a CFFI implementation that can work with PyPy

ZstdFile class has C language level performance

Supports Zstandard Seekable Format

Has a command line interface: python -m pyzstd --help