Documentation

The compression.zstd docs page and 3.14 what's new changelog entry neglect to mention that compression.zstd is an optional build time dependency. The import will fail when cpython is built without libzstd:

    import compression.zstd  # noqa: I900
    ^^^^^^^^^^^^^^^^^^^^^^^
/opt/python/3.14/lib/python3.14/compression/zstd/__init__.py:29: in <module>
    import _zstd
E   ModuleNotFoundError: No module named '_zstd'

https://docs.python.org/3/library/compression.zstd.html#module-compression.zstd

Linked PRs

• gh-139707: Add docs for optional modules #140171
• gh-139707: Better ModuleNotFoundError message for missing stdlib modules #140219
• gh-139707: Add mechanism for distributors to supply error messages for missing stdlib modules #140783
• [3.14] gh-139707: Add docs for optional modules (GH-140171) #141204
• gh-139707: Specify winreg, msvcrt and winsound module availability in docs #140429
• [3.14] gh-139707: Specify winreg, msvcrt and winsound module availability in docs (GH-140429) #141351
• [3.13] gh-139707: Specify winreg, msvcrt and winsound module availability in docs (GH-140429) #141350
• gh-139707: Fix example for configure option #142153
• gh-139707: Copy-strip change to idle.rst into idlelib #143718
• [3.14] gh-139707: Copy-strip change to idle.rst into idlelib (GH-143718) #143744
• [3.13] gh-139707: Copy-strip change to idle.rst into idlelib #143767