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| author | Eric V. Smith <ericvsmith@users.noreply.github.com> | 2018-01-28 01:30:37 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-01-28 01:30:37 (GMT) |
| commit | c4b1248308f051146a50ecc5e31d85d794dc8d05 (patch) | |
| tree | 460b7cea9a8eaf02c40c4fc9043f002cd5e4df7a /Doc/whatsnew | |
| parent | bea57060c863d0c3474c79350bd9c557f2ff0e7c (diff) | |
| download | cpython-c4b1248308f051146a50ecc5e31d85d794dc8d05.zip cpython-c4b1248308f051146a50ecc5e31d85d794dc8d05.tar.gz cpython-c4b1248308f051146a50ecc5e31d85d794dc8d05.tar.bz2 | |
Pep 557 What's New (GH-5371)
Add PEP 557 Data CLasses to What's New.
Diffstat (limited to 'Doc/whatsnew')
| -rw-r--r-- | Doc/whatsnew/3.7.rst | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.7.rst b/Doc/whatsnew/3.7.rst index 1ece6a3..5e35534 100644 --- a/Doc/whatsnew/3.7.rst +++ b/Doc/whatsnew/3.7.rst @@ -311,6 +311,24 @@ environment variable are added to control the UTF-8 mode. PEP written and implemented by Victor Stinner +.. _whatsnew37-pep557: + +PEP 557: Data Classes +--------------------- + +Adds a new module ``dataclasses``. It provides a class decorator +``dataclass`` which inspects the class's variable annotations (see +:pep:`526`) and using them, adds methods such as ``__init__``, +``__repr__``, and ``__eq__`` to the class. It is similar to +``typing.NamedTuple``, but also works on classes with mutable +instances, among other features. + +.. seealso:: + + :pep:`557` -- Data Classes + PEP written and implemented by Eric V. Smith + + New Development Mode: -X dev ---------------------------- |