[docs] [issue32216] Document PEP 557 Data Classes

Dec. 5, 2017

      New submission from Eric V. Smith <eric@trueblade.com>:

The documentation needs to be added.

----------
assignee: docs@python
components: Documentation
messages: 307614
nosy: docs@python, eric.smith
priority: high
severity: normal
status: open
title: Document PEP 557 Data Classes
versions: Python 3.7

_______________________________________
Python tracker <report@bugs.python.org>
<https://bugs.python.org/issue32216>
_______________________________________