27 lines
938 B
Python
27 lines
938 B
Python
from copy import deepcopy
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from types import MethodType
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class Prototype(object):
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"""
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Prototype design pattern abstract class.
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- External Usage documentation: U{https://github.com/tylerlaberge/PyPatterns/wiki/Creational-Pattern-Usage}
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- External Prototype Pattern documentation: U{https://en.wikipedia.org/wiki/Prototype_pattern}
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"""
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def prototype(self, **attributes):
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"""
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Copy the prototype this object and optionally update attributes.
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@param attributes: Keyword arguments of any attributes you wish to update.
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@return: A copy of this object with the updated attributes.
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"""
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obj = deepcopy(self)
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for attribute in attributes:
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if callable(attributes[attribute]):
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setattr(obj, attribute, MethodType(attributes[attribute], obj))
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else:
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setattr(obj, attribute, attributes[attribute])
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return obj
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