Though the accepted response is correct, that didn't help me actually create a 1-dimensional array of arrays.

As this thread is the first answer at Google, I post my work around, even if it isn't elegant solution (please don't hesitate to point one out to me):

import numpy as np

# Create example array
initial_array = np.ones(shape = (2,2))

# Create array of arrays
array_of_arrays = np.ndarray(shape = (1,), dtype = "object")
array_of_arrays[0] = initial_array

Be aware that array_of_arrays is in this case mutable, i.e. changing initial_array automatically changes array_of_arrays .