i want to convert randint () of python in sequincial form

i want to know which function to use get sequence form of data , how i can replace randint () used in code

enter code here

fig = plot.figure(figsize=(30, 30))
outer = gridspec.GridSpec(5, 5, wspace=0.2, hspace=0.2)

for i in range(10):
    inner = gridspec.GridSpecFromSubplotSpec(2, 1,subplot_spec=outer[i], wspace=0.1, hspace=0.1)
    rnd_number = randint(0,len(pred_images))
    pred_image = np.array([pred_images[rnd_number]])
    #pred_image = np.array(pred_images)
    pred_class = get_classlabel(loaded_model.predict_classes(pred_image)[0])
    pred_prob = loaded_model.predict(pred_image).reshape(6)
    for j in range(2):
        if (j%2) == 0:
            ax = plot.Subplot(fig, inner[j])
            ax.imshow(pred_image[0])
            ax.set_title(pred_class)
            ax.set_xticks([])
            ax.set_yticks([])
            fig.add_subplot(ax)
        else:
            ax = plot.Subplot(fig, inner[j])
            ax.bar([0,1,2,3,4,5],pred_prob)
            fig.add_subplot(ax)