human
Solve the following python programming problem given the following code:
def main() : 
    (x, y, z) = symbols ('x,y,z') 
    axes_options = 'visible=false.
colored=true.
label_ticks=true.
label_axes=true.
overlay=true.
stride=0.5' 
    p = PygletPlot (width = 600, height = 500, ortho = False, invert_mouse_zoom = False, axes = polar_circle, antialiasing = True) 
    examples = [] 
    def example_wrapper(f) : 
        examples.append (f) 
        return f 
@ example_wrapper 
    def mirrored_saddles() : 
        p [5] = (((x ** 2) - (y ** 2)), [20], [20]) 
        p [6] = (((y ** 2) - (x ** 2)), [20], [20]) 
@ example_wrapper 
    def mirrored_saddles_saveimage() : 
        p [5] = (((x ** 2) - (y ** 2)), [20], [20]) 
        p [6] = (((y ** 2) - (x ** 2)), [20], [20]) 
        p.wait_for_calculations () 
        sleep (1) 
        p.saveimage ('plot_example.png') 
@ example_wrapper 
    def mirrored_ellipsoids() : 
        p [2] = (((x ** 2) + (y ** 2)), [40], [40], 'color=zfade') 
        p [3] = (((- (x ** 2)) - (y ** 2)), [40], [40], 'color=zfade') 
@ example_wrapper 
    def saddle_colored_by_derivative() : 
        f = ((x ** 2) - (y ** 2)) 
        p [1] = (f, 'style=solid') 
        p [1].color = (abs (f.diff (x)), abs ((f.diff (x) + f.diff (y))), abs (f.diff (y))) 
@ example_wrapper 
    def ding_dong_surface() : 
        f = (sqrt ((1.0 - y)) * y) 
        p [1] = (f, [x, 0, (2 * pi), 40], [y, (- 1), 4, 100], 'mode=cylindrical.
style=solid.
color=zfade4') 
@ example_wrapper 
    def polar_circle() : 
        p [7] = (1, 'mode=polar') 
@ example_wrapper 
    def polar_flower() : 
        p [8] = ((1.5 * sin ((4 * x))), [160], 'mode=polar') 
        p [8].color = (z, x, y, (0.5, 0.5, 0.5), (0.8, 0.8, 0.8), (x, y, None, z)) 
@ example_wrapper 
    def simple_cylinder() : 
        p [9] = (1, 'mode=cylindrical') 
@ example_wrapper 
    def cylindrical_hyperbola() : 
        p [10] = ((1 / y), 'mode=polar', [x], [y, (- 2), 2, 20]) 
@ example_wrapper 
    def extruded_hyperbolas() : 
        p [11] = ((1 / x), [x, (- 10), 10, 100], [1], 'style=solid') 
        p [12] = (((-...

    
    

    Fix the buggy line: p = PygletPlot (width = 600, height = 500, ortho = False, invert_mouse_zoom = False, axes = polar_circle, antialiasing = True)
assistant
#Here is Python program to fix the buggy line: p = PygletPlot (width = 600, height = 500, ortho = False, invert_mouse_zoom = False, axes = polar_circle, antialiasing = True)
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p = PygletPlot (width = 600, height = 500, ortho = False, invert_mouse_zoom = False, axes = axes_options, antialiasing = True)