Python OOP

Development Code
1 
`#Python
class Car:
    model=0
    modelNumber=0
    def _init_(self,model):
        self.modelNumber=model
    def getNum():
        print modelNumber
        
    
obj = Car(5)
obj.getNum()

Could sombody tell me why I cannot give the constructor an argument

Traceback (most recent call last):
File "ex4.py", line 11, in
obj = Car(5)
TypeError: this constructor takes no arguments

2

It should be __init__ and not _init_

1 Like
3

Aside from what BaronOfCheese mentioned.. the getNum() method will always return 0.

If I had to guess what you were going for the class should look more like.

class Car:
def__init__(self, model=0):
self.__modelNumber = model
def getNum(self):
return self.__modelNumber

I have no idea how to properly format indents on this site, but add the indents.

4 
class Car:
    def __init__(self, model=0):
        self.__modelNumber = model
    def getNum(self):
        return self.__modelNumber

There fixed it for you

1 Like
5

It was supposed to I was just trying to get it to take an argument and my problem was I didnt include double underscores.