Summary

Since Python 3.14, it started to support zstd compression. And, since #6788, RustPython also provides compression.zstd but it doesn't work because RustPython doesn't implement _zstd yet.

Context

• https://docs.python.org/3/library/compression.zstd.html
• https://github.com/python/cpython/tree/v3.14.2/Modules/\_zstd