import matplotlib.pyplot as plt
import numpy as np


prog_lanugages = ('Python', 'C++', 'Java', 'Perl', 'C', 'Lisp')


x = np.arange(len(prog_lanugages))


performance = 


plt.bar(x, performance)


plt.xticks(x, prog_lanugages)
plt.ylabel('Usage')
plt.xlabel("Programming languages")
plt.title('Programming language usage')
plt.show()

Output: