Trip on the Funny Boat Code

import pygame

from OpenGL.GL import *

class Texture:
    def __init__(self, texture, width, height):
        self.texture = texture
        self.width = width
        self.height = height

    def get_width(self):
        return self.width

    def get_height(self):
        return self.height

def load_gl_texture(file):
    return make_gl_texture(pygame.image.load(file).convert_alpha())

def make_gl_texture(img):
    data = pygame.image.tostring(img, "RGBA", 1)

    width = img.get_width()
    height = img.get_height()

    texture = glGenTextures(1)
    glBindTexture(GL_TEXTURE_2D, texture)
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, data)

    return Texture(texture, width, height)

def delete_gl_texture(texture):
    glDeleteTextures(texture)