Removing Duplicates from Nested List Based on First 2 Elements

Question

I\'m trying to remove duplicates from a nested list only if the first 2 elements are the same, ignoring the third...

List:

L = [[\'el1\',\'el2\',\'va         


        

Answer 1

this should do it:

In [55]: dict((tuple(x[:2]), x) for x in L).values()
Out[55]: [['el1', 'el2', 'value2'], ['el1', 'el5', 'value3'], ['el3', 'el4', 'value2']]