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Added a docstring to cached_property.__get__().

This commit is contained in:
Adam Alton 2017-05-15 14:05:42 +01:00 committed by Tim Graham
parent 3a5299c19c
commit f9bae845ea
1 changed files with 4 additions and 0 deletions
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4
django/utils/functional.py
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@ -26,6 +26,10 @@ class cached_property:
self.name = name or func.__name__ self.name = name or func.__name__
def __get__(self, instance, cls=None): def __get__(self, instance, cls=None):
"""
Call the function and replace this cached_property instance with the
return value so that the function and this method aren't called again.
"""
if instance is None: if instance is None:
return self return self
res = instance.__dict__[self.name] = self.func(instance) res = instance.__dict__[self.name] = self.func(instance)