python, numpy; How to insert element at the start of an array

Question

I have an numpy array of complex numbers. So I want to insert zero at start of the array, and shift the rest of the array one place forward.

example:

Answer 1

Also, if you have an n-dimensional array, you need to specify the axis as well, otherwise it gets flattened out:

 np.insert(my_array, 0, myvalue, axis=1)