[FIXED] Remove the intersection of 2 arrays in a numpy array

Issue

I have 2 array:

old_array = [[1,2,3],[4,5,6],[7,8,9]]
new_array = [[10,11,12],[1,2,3],[4,5,6],[13,14,15]]

is there an easy algoritm to remove the rows who are already in old_array from new_array, so that the value of new_array is eventually

new_array = [[10,11,12],[13,14,15]]

Solution

[i for i in new_array if i not in old_array]

Answered By - Darina