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Random padding to the matrix using append, concatenate and insert

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import numpy as np

NR = 10
NC = 8
Z = np.ones((NR,NC))
print(Z)

_Z = [np.random.randint(0,9,NC)]
Z = np.append(Z, _Z, axis=0)
print(Z)

shape = Z.shape
_Z = np.random.randint(0,9,shape[0])
X = np.reshape(_Z, (shape[0],1))
Z = np.concatenate((Z,X),axis=1)
print(Z)

X = np.random.randint(0,9,shape[0])
Z = np.insert(Z, 0, X, axis=1)
print(Z)

shape = Z.shape
_Z = np.random.randint(0,9,shape[1])
Z = np.insert(Z, 0, _Z, axis=0)
print(Z)
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