#Three lines to make our compiler able to draw:

import sys

import matplotlib

matplotlib.use('Agg')

​

import matplotlib.pyplot as plt

import numpy as np

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x = np.array(["A", "B", "C", "D"])

y = np.array([3, 8, 1, 10])

​

plt.barh(x, y, height = 0.1)

plt.show()

​

#Two  lines to make our compiler able to draw:

plt.savefig(sys.stdout.buffer)

sys.stdout.flush()

​