1 import matplotlib.pyplot as plt 2  3 ax1 = plt.subplot(211) 4 ax2 = plt.subplot(212) 5  6 ax1.set_xticks(range(4)) 7 ax1.set_xticklabels(["a","b","c","d"]) 8 ax1.bar(range(4),[4,3,2,5]) 9 10 ax2.set_xticks(range(4))11 ax2.set_xticklabels(["as","bb","cc","dd"])12 ax2.bar(range(4),[6,1,2,3])13 14 plt.show()