how to plot side by side bar horizontal bar graph in python

1import pandas
2import matplotlib.pyplot as plt
3import numpy as np
4
5df = pandas.DataFrame(dict(graph=['Item one', 'Item two', 'Item three'],
6                           n=[3, 5, 2], m=[6, 1, 3])) 
7
8ind = np.arange(len(df))
9width = 0.4
10
11fig, ax = plt.subplots()
12ax.barh(ind, df.n, width, color='red', label='N')
13ax.barh(ind + width, df.m, width, color='green', label='M')
14
15ax.set(yticks=ind + width, yticklabels=df.graph, ylim=[2*width - 1, len(df)])
16ax.legend()
17
18plt.show()
19