Python closure to simulate a class

demo.py

def Tool(name):
  data = {
    'name': name,
    'size': 0,
    'color': 0xffee88,
  }
    
  def get_color():
    return data['color']
    
  def get_size():
    return data['size']
  
  def set_size(size):
    data['size'] = size
  
  def instance():
    pass
  
  instance.get_color = get_color
  instance.get_size = get_size
  instance.set_size = set_size
  return instance

if __name__ == '__main__':
  pen = Tool('pen')
  print('Pen size: {}'.format(pen.get_size()))
  pen.set_size(2)
  brush = Tool('brush')
  print('Pen size: {}'.format(pen.get_size()))
  print('Brush size: {}'.format(brush.get_size()))
  print('Brush color: #{:x}'.format(brush.get_color()))