Python function to find the intersection between two 2D (or nD) numpy arrays, i.e. intersection of rows

intersect2D.py

import numpy as np

def intersect2D(Array_A, Array_B):
  """
  Find row intersection between 2D numpy arrays, a and b.
  """

  # ''' Using Tuple ''' #
  intersectionList = np.asarray([x for x in Array_A for y in Array_B  if(tuple(x) == tuple(y))])
  
  # ''' Using Numpy array_equal ''' #
  """ This method is valid for an ndarray """
  intersectionList = np.asarray([x for x in Array_A for y in Array_B  if(np.array_equal(x, y))])
  
  # """ Using set and bitwise and
  intersectionList = [list(y) for y in (set([tuple(x) for x in a]) & set([tuple(x) for x in b]))]
  
  return intersectionList

###########################################

import numpy as np

def intersect2D(Array_A, Array_B):
    """
    Find row intersection between 2D numpy arrays, a and b.
    """

    # ''' Using Tuple ''' #
    intersectionList = list(set([tuple(x) for x in Array_A for y in Array_B  if(tuple(x) == tuple(y))]))
    
    print ("intersectionList (not Empty) = \n",intersectionList)
    # ''' Using Numpy function "array_equal" ''' #
    """ This method is valid for an ndarray """
    intersectionList = list(set([tuple(x) for x in Array_A for y in Array_B  if(np.array_equal(x, y))]))
    print ("intersectionList (not Empty) = \n",intersectionList)
    
    # ''' Using set and bitwise and '''
    intersectionList = [list(y) for y in (set([tuple(x) for x in Array_A]) & set([tuple(x) for x in Array_B]))]
    print ("intersectionList (not Empty) = \n",intersectionList)

    return intersectionList


## Example with Intersection don't empty ##
###########################################
a =([[941., 672.], [945., 658.], [952., 658.], [953., 668.], [954., 670.]])
b =([[941., 672.], [952., 658.], [952., 658.], [952., 659.]])
 
intersectionList= intersect2D(a, b)


########################################
## Example with Intersection is empty ##
########################################
a =np.asarray([[941., 672.], [945., 658.], [952., 658.], [953., 668.], [954., 670.]])
b =np.asarray([[941., 675.], [952., 669.], [952., 659.]])

intersectionList = intersect2D(a, b)