廖雪峰Python 错误类型

廖雪峰Python 错误类型

ValueError

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def set_gender(self, gender):
    if gender not in ('male', 'female'):
        raise ValueError('gender must be male or female')
    self.__gender = gender

TypeError

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>>> abs(1, 2)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: abs() takes exactly one argument (2 given)