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Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/whatsnew/3.8.rst | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.8.rst b/Doc/whatsnew/3.8.rst index 85351e1..fef712d 100644 --- a/Doc/whatsnew/3.8.rst +++ b/Doc/whatsnew/3.8.rst @@ -683,6 +683,22 @@ than as a function returning a decorator. So both of these are now supported:: (Contributed by Raymond Hettinger in :issue:`36772`.) +Added a new :func:`functools.cached_property` decorator, for computed properties +cached for the life of the instance. :: + + import functools + import statistics + + class Dataset: + def __init__(self, sequence_of_numbers): + self.data = sequence_of_numbers + + @functools.cached_property + def variance(self): + return statistics.variance(self.data) + +(Contributed by Carl Meyer in :issue:`21145`) + gc -- |