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| author | Eric V. Smith <ericvsmith@users.noreply.github.com> | 2018-01-28 14:25:45 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-01-28 14:25:45 (GMT) |
| commit | 4d0296649a48ff9dbc290394ff656cf3dea86107 (patch) | |
| tree | edffab7bd7c0117c96a9c31cf1aa34ee6a67c484 /Doc/whatsnew | |
| parent | f0a95f27c043e847a23940534fdfc53e1b3e31a1 (diff) | |
| download | cpython-4d0296649a48ff9dbc290394ff656cf3dea86107.zip cpython-4d0296649a48ff9dbc290394ff656cf3dea86107.tar.gz cpython-4d0296649a48ff9dbc290394ff656cf3dea86107.tar.bz2 | |
Add example for PEP 557. (GH-5383)
Diffstat (limited to 'Doc/whatsnew')
| -rw-r--r-- | Doc/whatsnew/3.7.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.7.rst b/Doc/whatsnew/3.7.rst index 5e35534..9979e69 100644 --- a/Doc/whatsnew/3.7.rst +++ b/Doc/whatsnew/3.7.rst @@ -323,6 +323,17 @@ Adds a new module ``dataclasses``. It provides a class decorator ``typing.NamedTuple``, but also works on classes with mutable instances, among other features. +For example:: + + @dataclass + class Point: + x: float + y: float + z: float = 0.0 + + p = Point(1.5, 2.5) + print(p) # produces "Point(x=1.5, y=2.5, z=0.0)" + .. seealso:: :pep:`557` -- Data Classes |