#python program to calculate perimeter of a rectangle

#take length and breadth of a rectangle as input from user

length=input("Enter length of rectangle: ")

breadth=input("Enter length of rectangle: ")

try:

    length=float(length)

    breadth=float(breadth)

    #calculate perimeter of rectangle

    perimeter = 2 * (length + breadth)

    #print perimeter of rectangle

    print("---output---")

    print("perimeter of rectangle with length %0.2f and breadth %0.2f is %0.2f"%(length,breadth,perimeter))

except:

    print("---error---")

    print("please enter a valid length")

Enter length of rectange: 4

Enter length of breadth: 2

---output---

perimeter of rectange with length 4.00 and breadth 2.00 is 12.00

 

Enter length of rectange: l

Enter length of breadth: b

---error---

please enter a valid length