Remove duplicates and original from list

Question

Given a list of strings I want to remove the duplicates and original word.

For example:

lst = [\'a\', \'b\', \'c\', \'c\', \'c\', \'d\', \'e\', \'e\']
         


        

Answer 1

lst = ['a', 'b', 'c', 'c', 'c', 'd', 'e', 'e']
from collections import Counter
c = Counter(lst)
print([k for k,v in c.items() if v == 1 ])

collections.Counter will count the occurrences of each element, we keep the elements whose count/value is == 1 with if v == 1