1 SIMPLE Trick To REMOVE Duplicates From ANY List In Python 💫

Remove duplicates from any list in #Python with this simple trick. #Code #Shorts

[gfher]

That's a really nice tip by the way. You can also use it to check if a list contains only unique values:
if len(set(list1)) == len(list1):
# unique

[bx_h]

..and if you want to keep the order of the list:
list(dict.fromkeys(<list>))

[moonmountain_]

Won't that mess up the order though?
And order is basically the most important trait of a list

[SandroAerogen]

This will generally destroy the ordering of the list (because sets are unordered). The simplest way to remove duplicates while preserving the ordering is by using a for loop like this:

list_without_duplicates = [ ]
for x in _list:
if x not in list_without_duplicates:

[Sinke_]

list(dict.fromkeys(_list)) much better aproach, alternative version sorted(set(_list), key=_list.index) cause set is unsorted so u will not have them in same sort as original, but in some cases u don't perhaps need correct order

[saumytiwari]

Here what I do In this condition:



As we know that dictionary keys cannot be duplicate..,
So we have converted list items into dictionary keys..
And reconverted back to list

[ivan]

actually it is not, there is some feature: >>> set([1, 2, 3, True, False, 0])
{False, 1, 2, 3}

[oida]

Note I would recommend using sorted instead of list to insure the order.

[dcknature]

Wow 😳! That's a list, put inside of a set, inside of a list, to remove duplicates. Sound recursively to me 😁.
Thanks for the tip 🍉😉👍 n

[WillyJL]

Very bad advice. Sets don’t have order, which is one of the main points of lists. You should use

[jimmyneutron]

why are there so much bad python videos like this. A set does not have any order, I'm pretty sure it is undefined behavior and can very well result with another order for whatever algorithm used depending on the interpreter/compiler

[shlokbhakta]

I couldn’t get it to work for the pagame Vector2. I just didn’t remove duplicates lol the game was simple and it didn’t impact performance too much. Why work harder when you can work lazier amirite programmers

[SupreemeSteevee]

You didn't actually remove duplicate number you just created a new list with unique numbers