Create properties that are only computed the first time they are called.
Only compute the value of properties the first time they are called. The easiest way to explain it is by example.
class Foo(object): def __init__(self): self._bar_cache = None @property def bar(self): if self._bar_cache is None: self._bar_cache = 2 * 2 * 2 return self._bar_cache
from memoize import mproperty class Foo(object): @mproperty def bar(self): return 2 * 2 * 2
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