import numpy as np
import control

K1 = 2
K2 = 3
T = 4

num1 = np.array([K1])
den1 = np.array([1, 0])

num2 = np.array([K2])
den2 = np.array([T, 1])

H1 = control.tf(num1, den1)
H2 = control.tf(num2, den2)

H = control.series(H1, H2)

print('H =', H)