Python3: TypeError: 'int' object is not callable

Question

Python3: TypeError: 'int' object is not callable, is it because the way I called the method .area() is wrong? Or is it because the way I def the .area() is wrong? Thank you

class Rectangle: 
    def __init__ (self):
        self.height = 0
        self.width = 0
        self.area = 0

    def setData(self, height, width):
        self.height = height
        self.width = width

    def area(self, height, width):
        self.area = height * width

    def __str__(self):
        return "height = %i, width = %i" % (self.height, self.width)
        return "area = %i" % self.area

if __name__ == "__main__":
    r1 = Rectangle()
    print (r1)
    r1.setData(3,4)
    print (r1)

Here I call .area(), I think what's where the problem comes from:

    r1.area(3,4)
    print (r1)

better to call the method setArea, or if the input is empty/None have "get" behavior and if there is a value have "set" behavior. — uhoh, May 07 '16 at 16:10

linusg · Accepted Answer · 2016-09-16T18:55:21.450

7

It's because you first defined a variable area (an integer to be specific) as an attribute of your class Rectangle, and later a function area().

This inconsistency causes confusion so the Python interpreter tries to call the interger as a function which fails. Just rename one of the integer variable (self.area = ...) or the function (def area(...)), and everything should work fine.

Hope this helps!

edited Sep 16 '16 at 18:55

answered May 07 '16 at 16:06

linusg

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score 2 · Answer 2 · answered May 07 '16 at 16:06

You have name collision between the area method and the area field. It looks like you dont need the area field at all. And the arguments of the area function are not used. And you have two __str__ functions too. I attempted to fix it:

class Rectangle: 
    def __init__ (self):
        self.height = 0
        self.width = 0

    def setData(self, height, width):
        self.height = height
        self.width = width

    def __str__(self):
        return "height = %i, width = %i" % (self.height, self.width)

    def area(self):
        return self.height * self.width

if __name__ == "__main__":
    r1 = Rectangle()
    print (r1)
    r1.setData(3,4)
    print (r1)
    print ("area = ", r1.area())

score 1 · Answer 3 · answered May 07 '16 at 16:07

1

def area(self, height, width):
    self.area = self.height * self.width

You are defining a method area and inside the method you overwrite it with an int.

answered May 07 '16 at 16:07

C14L

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Python3: TypeError: 'int' object is not callable

3 Answers3