how to extend the numpy array in loop

Question

import numpy as np

attendance = np.array([1,0,0,1,1,1,0,1,0,1,1,1,1,1,1,1,1,1,1,1,0,1,0,0,1,1,1,1,1,1,1,0,1,1,1,1,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,1,1,1,1,1,1,