import matplotlib.pyplot as plt; import numpy as np import matplotlib.pyplot as plt objects = ('Ajay','Rahul','Srinidhi') y_pos = np.arange(len(objects)) performance = [10000,20000,5000] plt.bar(y_pos, performance, align='center', alpha=0.5) plt.xticks(y_pos, objects) plt.ylabel('Usage') plt.title('Programming language usage') plt.show()