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In Python, how to create an NumPy array of random integers?

The NumPy function numpy.random.randint(low, high=None, size=None, dtype='l') is devoted to return random numbers. By setting the size option, the function can return a numpy.ndarray of random integer :

>>> import numpy as np
>>> np.random.randint(low = 0, high = 10, size=(3,2))
array([[8, 7],
       [8, 2],
       [6, 2]])