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Delete blockchain/proof_of_stake.py

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DIVYASREE S 2024-10-10 21:39:40 +05:30 committed by GitHub
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blockchain/proof_of_stake.py
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import random
class Validator:
def __init__(self, name: str, stake: int) -> None:
"""
Initializes a new validator with a given name and stake.
Args:
name (str): The name of the validator.
stake (int): The amount of stake the validator has.
"""
self.name = name
self.stake = stake
def choose_validator(validators: list[Validator]) -> Validator:
"""
Selects a validator to create the next block based on the weight of their stake.
The higher the stake, the greater the chance to be selected.
Args:
validators (list[Validator]): A list of Validator objects.
Returns:
Validator: The selected validator based on weighted random selection.
Example:
>>> validators = [Validator("Alice", 50), Validator("Bob", 30), Validator("Charlie", 20)]
>>> chosen = choose_validator(validators)
>>> isinstance(chosen, Validator)
True
"""
total_stake = sum(v.stake for v in validators)
weighted_validators = [(v, v.stake / total_stake) for v in validators]
selected = random.choices(
[v[0] for v in weighted_validators], weights=[v[1] for v in weighted_validators]
)
return selected[0]