Comparing 2 lists consisting of dictionaries with unique keys in python

Question

I have 2 lists, both of which contain same number of dictionaries. Each dictionary has a unique key. There is a match for each dictionary of the first list in the second lis

Answer 1

The fastest and most comprehensive way would be, to use two sets of tuples:

set_list1 = set(tuple(sorted(d.items())) for d in list1)
set_list2 = set(tuple(sorted(d.items())) for d in list2)

Find overlapping using intersection:

set_overlapping = set_list1.intersection(set_list2)

Find difference using symmetric_difference

set_difference = set_list1.symmetric_difference(set_list2)

Convert tuple back to dict

 for tuple_element in set_difference:
     list_dicts_difference.append(dict((x, y) for x, y in tuple_element))