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

@Padraic:

If your list is:

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

then

list(set(lst))

would return the following:

['a', 'c', 'b', 'e', 'd']

which is not the thing adhankar wants..

Filtering all duplicates completely can be easily done with a list comprehension:

[item for item in lst if lst.count(item) == 1]

The output of this would be:

['a', 'b', 'd']

item stands for every item in the list lst, but it is only appended to the new list if lst.count(item) equals 1, which ensures, that the item only exists once in the original list lst.

Look up List Comprehension for more information: Python list comprehension documentation