17 lines
361 B
Python
17 lines
361 B
Python
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# stock.py
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from structure import Structure
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from validate import String, PositiveInteger, PositiveFloat
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class Stock(Structure):
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name = String()
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shares = PositiveInteger()
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price = PositiveFloat()
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@property
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def cost(self):
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return self.shares * self.price
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def sell(self, nshares: PositiveInteger):
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self.shares -= nshares
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