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[pre-commit.ci] auto fixes from pre-commit.com hooks

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pre-commit-ci[bot] 2024-10-10 15:54:30 +00:00
parent 28df0f3c9b
commit d770fa5bf5
1 changed files with 12 additions and 8 deletions
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20
blockchain/proof_of_stake.py
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@ -1,18 +1,20 @@
import random
from typing import List
class Validator:
"""
Represents a validator in a Proof of Stake system.
Attributes:
name (str): The name of the validator.
stake (int): The amount of stake (coins) the validator holds.
"""
def __init__(self, name: str, stake: int):
"""
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.
@ -20,18 +22,19 @@ class Validator:
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)
@ -40,6 +43,7 @@ def choose_validator(validators: List[Validator]) -> Validator:
"""
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])
selected = random.choices(
[v[0] for v in weighted_validators], weights=[v[1] for v in weighted_validators]
)
return selected[0]