matplotlib nice bar plot with label

bar-with-label.py

x = np.random.randint(0, 100, size=(100))
rects1=plt.bar(np.arange(x.shape[0]), x)
def autolabel(rects):
    (y_bottom, y_top) = plt.ylim()
    y_height = y_top - y_bottom
    for rect in rects:
        height = rect.get_height()
        p_height = (height / y_height)
        if p_height > 0.95:
            label_position = height - (y_height * 0.05)
        else:
            label_position = height + (y_height * 0.01)
        plt.text(rect.get_x() + rect.get_width()/2., label_position,'%f' % height,ha='center', va='bottom')

autolabel(rects1)
plt.show()