22 lines
672 B
Python
22 lines
672 B
Python
import random
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from typing import List
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class FisherYates:
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@staticmethod
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def shuffle(elements: List, entropy: bytes) -> List:
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"""
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Fisher-Yates shuffling algorithm.
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In Python, random.shuffle implements the Fisher-Yates shuffling.
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https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle
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https://softwareengineering.stackexchange.com/a/215780
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:param elements: elements to be shuffled
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:param entropy: a seed for deterministic sampling
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"""
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out = elements.copy()
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random.seed(a=entropy, version=2)
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random.shuffle(out)
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# reset seed
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random.seed()
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return out
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