compare lists and retain duplicates
89040
Common lines between two files
22337
How to test if a list contains another list?
21871
In Python, what is the fastest algorithm for removing duplicates from a list so that all elements are unique *while preserving order*?
63103
Compare the difference between two list
7486
Test if lists share any items in python
35506
remove duplicate from list and create non-duplicate id set
57168
How to deep copy a list?
36545
Merge lists that share common elements
98711
How to duplicate a certain collection using Python?
117424
Simple way to find if two different lists contain exactly the same elements?
34707
How do you check if there are any equal arguments(even sublist) in a list?
32335
How to get duplicate items from a list using LINQ?
39443
Remove duplicate rules in a list?
16135
How could I retrieve the exact duplicate value from conditionally formatted list that highlight duplicates?
49014
Getting unique items from a list
12285
Remove duplicates from a List in C#
119728
How to remove all duplicates from an array of objects?