Add main docstring for std module dataclasses

[aiwonderland]

Documentation

Add main docstring for std module dataclasses!

Python 3.14.3 (tags/v3.14.3:323c59a, Feb  3 2026, 16:04:56) [MSC v.1944 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
Ctrl click to launch VS Code Native REPL
>>> import dataclasses
>>> help(dataclasses)
Help on module dataclasses:                                                                                                                                                                             

NAME
    dataclasses

MODULE REFERENCE
    https://docs.python.org/3.14/library/dataclasses#module-dataclasses

    The following documentation is automatically generated from the Python
    source files.  It may be incomplete, incorrect or include features that
    are considered implementation detail and may vary between Python
    implementations.  When in doubt, consult the module reference at the
    location listed above.
...

Linked PRs

• gh-152361: Add module docstring to dataclasses #152372

[zainnadeem786]

Hi @aiwonderland,

I'd like to work on this if no one is already working on it.

I took a quick look and it seems like a focused change to add a module-level docstring to Lib/dataclasses.py so that help(dataclasses) displays a useful module description.

I'll prepare a small PR unless someone has already started working on it.

[picnixz]

I don't think it's necessary. It is a useful description IMO already and the webpage is much more complete and serves as a better reference for the subtleties of dataclasses.