OOP Python

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

  def calc_area(self):
    s = self.width * self.height
    return s

  def calc_perimeter(self):
    p = 2*(self.width + self.height)
    return p

  def print_info(self):
    print('Rectangle name: %s' % self.name)
    print('Width: %d\nHeight: %d' % (self.width, self.height))
    print('Area: %d\nPerimeter: %d' % (self.calc_area(), self.calc_perimeter()))


r = Rectangle()
r.width = 20
r.print_info()
r2 = Rectangle(10, 30, 'UKTC')
r2.print_info()