22 lines
536 B
Python
22 lines
536 B
Python
from decimal import ROUND_HALF_UP, Decimal
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HUNDRED = Decimal("100")
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ZERO = Decimal("0")
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TWO_PLACES = Decimal("0.01")
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def clamp(value: Decimal) -> Decimal:
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return min(HUNDRED, max(ZERO, value))
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def round_score(value: Decimal) -> Decimal:
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return value.quantize(TWO_PLACES, rounding=ROUND_HALF_UP)
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def as_decimal(value: object) -> Decimal:
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if isinstance(value, Decimal):
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return value
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if isinstance(value, bool) or value is None:
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raise TypeError("value is not numeric")
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return Decimal(str(value))
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