this constructor takes no arguments: python <pre><code>import random import sys import os class Animal : __name="" __height=0 __weight=0 __sound=0 def __init__(self, name, height, weight, sound): self.__name=name self.__height=height self.__weight=weight self.__sound=sound def set_name(self,name): self.__name =name def get_name(self): return self.__name def set_height(self,height): self.__height =height def get_height(self): return str(self.__height) def set_weight(self,weight): self.__weight =weight def get_weight(self): return str(self.__weight) def set_sound(self,sound): self.__sound =sound def get_sound(self): return self.__sound def get_type(self): print("Animal") def toString(self): return"{} is {} cm tall and {} kilograms and say{}".format(self.__name, self.__height,self.__weight,self.__sound) cat = Animal('ruby',33,10,'meow') print(cat.toString()) </code></pre> <p>Error message:</p> <pre><code>Traceback (most recent call last): File "python", line 37, in &lt;module&gt; TypeError: this constructor takes no arguments </code></pre>