Python help: OOP Rectangles

Question

Please help with completing this. I am stuck and cant seem to get it. Below this is what i was given and below the code is what the output needs to be.

def main():
print ("Rectangle a:")
a = Rectangle(5, 7)
print ("area:      {}".format(a.area))
print ("perimeter: {}".format(a.perimeter))

print ("")
print ("Rectangle b:")
b = Rectangle()
b.width = 10
b.height = 20
print (b.getStats())

Expected Output

When the Rectangle class has been properly created, the output should look like the following:

Rectangle a:
area:      35
perimeter: 24
Rectangle b:
width:     10
height:    20
area:      200
perimeter: 60

this is what i have done from what i know. I missed the lecture for a family emergency and dont know how to finish it.

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

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

def main(): 
    print ("Rectangle a:") 
    a = Rectangle (5, 7) 
    #print ("area: {}".format(a.area)) 
    #print ("perimeter: {}".format(a.perimeter)) 
    print ("") 
    print ("Rectangle b:") 
    b = Rectangle() 
    b.width = 10 
    b.height = 20 
    #print (b.area) 
    #print (b.getStats()) 

main ()

And where is something that you've done? I won't do your homework for you. — Tymoteusz Paul, Nov 08 '14 at 20:44
ill post an answer with what i have done so far and where im stuck. — john kelsey, Nov 08 '14 at 20:49
Don't post that as an answer, instead add that and explanation in your question. — Tymoteusz Paul, Nov 08 '14 at 20:49
You forgot to explain why you are stuck, what seems to be the problem — Tymoteusz Paul, Nov 08 '14 at 20:53
i dont know how to get it to actually show the needed outputs. When i run what i have all that comes out is: Rectangle a: Rectangle b: but there is no outputs for the rectangles — john kelsey, Nov 08 '14 at 20:54
possible duplicate of [How can I write a socket server in a different thread from my main program (using gevent)?](http://stackoverflow.com/questions/22691736/how-can-i-write-a-socket-server-in-a-different-thread-from-my-main-program-usin) — Tymoteusz Paul, Nov 08 '14 at 23:36

score 1 · Accepted Answer · answered Nov 08 '14 at 21:23

First and foremost, you should roll a newspaper and whack the teacher on the nose for proposing the use of function named main(). Python already comes with __main__ which you are welcome to use.

As for your ongoing issue, I took a liberty of reworking your code a bit, and you should be able to follow its lead on the road to success.

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

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

if __name__ == "__main__": 
    a = Rectangle (5, 7) 
    print ("Rectangle a.w: %s a.h: %s" % (a.width, a.height)) 
    b = Rectangle() 
    b.width = 10 
    b.height = 20 
    print ("Rectangle b.w: %s b.h: %s" % (b.width, b.height))

Python help: OOP Rectangles

1 Answers1