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20 lines
446 B
20 lines
446 B
2 weeks ago
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from math import pi as pi
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class Kreis_getattr:
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def __init__(self, radius):
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self.radius = radius
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self.operators ={
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'durchmesser': lambda x: self.radius * 2,
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'umfang': lambda x: self.durchmesser * pi,
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'flaeche': lambda x: self.radius**2 *pi
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}
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def __getattr__(self, name):
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if name not in self.operators:
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raise TypeError(f'unbekannte Operation {name}')
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return self.operators[name](0)
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