get ddifferenc 2d list python code example

Example 1: how to subtract 2 lists in python

[item for item in x if item not in y]

Example 2: how to transpose a 2d list in python

import numpy as np

def func(my_matrix):

	# Making np array of the list
	my_matrix = np.array(my_matrix)

	# Find the transpose to get image vector in column
	my_matrix = my_matrix.transpose()
    
    return my_matrix

Example 3: get list of words that are in two lists using set

list1 = ['little','blue','widget']
list2 = ['there','is','a','little','blue','cup','on','the','table']

list3 = set(list1)&set(list2) # we don't need to list3 to actually be a list

list4 = sorted(list3, key = lambda k : list1.index(k))