def resize(width, height):

    glViewport(0, 0, width, height)
    glMatrixMode(GL_PROJECTION)
    glLoadIdentity()
    gluPerspective(60.0, height/float(width), .1, 1000.)
    glMatrixMode(GL_MODELVIEW)
    glLoadIdentity()
dataset/ETHPy150Open PythonProgramming/Beginning-Game-Development-with-Python-and-Pygame/Chapter 12/fogdemo.py/resize/swapped operands of `/`