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15 lines
279 B
Python
15 lines
279 B
Python
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class Scorer(object):
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def __init__(self):
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self.true = 0
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self.total = 0
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def __iadd__(self, is_correct):
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self.true += is_correct
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self.total += 1
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return self
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def __str__(self):
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return '%.3f' % (self.true / self.total)
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