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Traceback (most recent call last):
  File "./lesson6.py", line 228, in <module>
    main()
  File "./lesson6.py", line 221, in main
    InitGL(640, 480)
  File "./lesson6.py", line 87, in InitGL
    LoadTextures()
  File "./lesson6.py", line 76, in LoadTextures
    glTexImage2D(GL_TEXTURE_2D, 0, 3, ix, iy, 0, GL_RGBA, GL_UNSIGNED_BYTE, image)
OpenGL.GL.GLerror: [Errno 1280] invalid enumerant