Python: I need to get my values to print using __str__ but I dont know how

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Python

string

functional

(please note I need to use two classes and the __init__ and __str__)I need to print out the values of my code using str but it's not printing out I am confused because I feel like I added all the attributes correctly and it gets all the values but just doesn't print out what I need it to print out. What I am trying to do is find the area and circumference of a circle using classes, init and str with the radius as 3 and pi as 3.14. I really need help and if you know any way to do this it would really help

Here is the code:

class Given():
    def __init__(self):
        self.radius = 3
        self.pi = 3.14
        self.stringforradius = str(self.radius)
        self.stringforpi = str(self.pi)
def __str__(self):
    return("radius = {}, pi = {}, The area of the circle is {},radius = {}, pi = {}, The circumference of the circle is {} ".format (self.stringforradius, self.stringforpi, self.getcircumference,self.stringforradius, self.stringforpi, self.getarea))
  
class area(Given):
    def squared(self):
        self.square = self.radius * self.radius  
    
    def area(self):
        self.ar = self.pi * self.square
        self.getarea = str(self.ar)



class circumference(Given):
    def cir(self):
        self.cir1 = 2 * self.pi * self.radius
        self.getcircumference = str(self.cir1)

gettingtotal = area()
gettingtotal.squared()
gettingtotal.area()
gettingtotall = circumference()
gettingtotall.cir()
print(gettingtotal.__str__())
print(gettingtotall.__str__())

What I have tried:

I have tried many different ways to fix my variables but this is as close as I got