import matplotlib.pyplot as plt
import pandas as pd

df = pd.DataFrame({"Apple" : [2,3,4,1], "Banana" : [4,2,1,2]})

ax = df.plot.barh()
ax.legend()

plt.show()

h, l = ax.get_legend_handles_labels()
ax.legend(h[::-1], l[::-1])

ax = df.plot.barh()
ax.invert_yaxis()

import matplotlib.pyplot as plt
import pandas as pd

df = pd.DataFrame({"Apple" : [2,3,4,1], "Banana" : [4,2,1,2]})
df = df.reindex_axis(reversed(sorted(df.columns)), axis = 1)
ax = df.plot.barh()
ax.legend()

plt.show()