mirror of
https://github.com/avatao-content/baseimage-tutorial-framework
synced 2024-09-19 22:21:34 +00:00
20 lines
582 B
Python
20 lines
582 B
Python
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# Copyright (C) 2018 Avatao.com Innovative Learning Kft.
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# All Rights Reserved. See LICENSE file for details.
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class LazyInitialise:
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"""
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Decorator that replaces a function with the value
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it calculates on the first call.
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"""
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def __init__(self, func):
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self.func = func
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self.__doc__ = func.__doc__
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def __get__(self, instance, owner):
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if instance is None:
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raise TypeError('Cannot get object property from class!')
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value = self.func(instance)
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setattr(instance, self.func.__name__, value)
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return value
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