Pygame shape border not appearing

Question

I've just started learning python, and I was messing around with classes to understand them better when I notice something.

When I run the code below I expected both shapes to just be borders, but the blue one is filled.

I googled for answers, but the results were all to do with shapes not appearing at all.

I also tried adding more numbers to the rectangle

e.g: rectangle = pygame.draw.rect(self.screen, self.color, (self.height, self.width, self.location_x, self.location_y), self.border, 10, 20, 20, 20, 20)

But, that rounded the corners.

I would like to know why the blue rectangle isn't a boarder and how to make it one. Thank you.

import pygame

screen = pygame.display.set_mode ((500, 500))

red = (255, 0, 0)
green = (0, 255, 0)
blue = (0, 0, 255)


class shape():
  def __init__(self, screen, color, location_x, location_y, border):
    self.screen = screen
    self.color = color
    self.location_x = location_x
    self.location_y = location_y
    self.border = border

class rectangle(shape):
  def __init__(self, screen, color, location_x, location_y, border, height, width):
    shape.__init__(self, screen, color, location_x, location_y, border)
    self.height = height
    self.width = width
  def draw(self):
    rectangle = pygame.draw.rect(self.screen, self.color, (self.height, self.width, self.location_x, self.location_y), self.border)

Rectangle = rectangle(screen, blue, 50, 50, 100, 100, 5)
Rectangle.draw()

pygame.draw.rect(screen, red, (400, 400, 50, 50), 3)

pygame.display.flip()