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pythonkurs/getattr/Kreis_getattr.py
2024-11-09 16:58:16 +01:00

20 lines
446 B
Python

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