用python绘制3d球体的最简单方法？

import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D

fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')

u = numpy.linspace(0, 2 * numpy.pi, 100)
v = numpy.linspace(0, numpy.pi, 100)
x = 10 * numpy.outer(numpy.cos(u), numpy.sin(v))
y = 10 * numpy.outer(numpy.sin(u), numpy.sin(v))
z = 10 * numpy.outer(numpy.ones(numpy.size(u)), numpy.cos(v))

ax.plot_surface(x, y, z, color='b')

plt.show()