How to declare a binary array in numpy?

Question

This question might be pretty simple to answer, but I had problems finding obvious answer in the numpy documentation.

What is the dtype to select when initializing a binary numpy array as follows:

array = np.zeros(8, dtype=np.int)

Answer 1

You can use np.bool:

array = np.zeros(8, dtype=np.bool)

output:

array([False, False, False, False, False, False, False, False])