Average age by class of Python.

class Students:
   def __init__(self,name,ID,age,weight,height):
      self.name = name
      self.ID = ID
      self.age = age
      self.weight = weight
      self.height = height
   
   def get_age(self):
      return self.age
   
def setup():
   a = Student("Frame", 173, 58, 32080, 20)
   b = Student("Bank", 168, 60, 20071, 19)
   c = Student("Pee", 166, 54, 20054, 20)
   d = Student("Fern", 165, 53, 20097, 19)
   nukrean = [a, b, c, d]
   average(nukrean)
 
def average(nukrean):
   i = 0
   count = 0
   sum = 0
   a = 0
   while(i < len(nukrean)):
      sum = sum + nukrean[i].get_age()
      count = count + 1
      a = sum/count
      i = i + 1
   print("Average = ",a)
 
setup()