Question

How to remove duplicate sublists from a list in Python

Answer 1

def remove_duplicate_sublists(lst): 
     return [list(e) for e in {*[tuple(sorted(e)) for e in lst]}]
       

lst = [[1, 2], [3, 4, 5], [1, 2], [3, 4], [1, 2], [6, 7], [3, 4]] 

lst = remove_duplicate_sublists(lst) 

print(lst)



'''
run:
 
[[1, 2], [3, 4, 5], [3, 4], [6, 7]]

'''

 

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Answer 2

def remove_duplicate_sublists(lst): 
     return list(map(list, (set(map(lambda e: tuple(sorted(e)), lst)))))
       

lst = [[1, 2], [3, 4, 5], [1, 2], [3, 4], [1, 2], [6, 7], [3, 4]] 

lst = remove_duplicate_sublists(lst) 

print(lst)



'''
run:
 
[[1, 2], [3, 4, 5], [3, 4], [6, 7]]

'''

 

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Answer 3

def remove_duplicate_sublists(lst): 
     return [list(e) for e in set(map(tuple, lst))]
       

lst = [[1, 2], [3, 4, 5], [1, 2], [3, 4], [1, 2], [6, 7], [3, 4]] 

lst = remove_duplicate_sublists(lst) 

print(lst)



'''
run:
 
[[1, 2], [3, 4, 5], [3, 4], [6, 7]]

'''

 

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