Get unique items from an iterable while maintaining item order
See if you can figure out at least one of the bonuses for this exercise if you have time.
I want you to write a function that accepts an iterable and returns a new iterable with all items from the original iterable except for duplicates.
Here's an example:
>>> uniques_only([1, 2, 2, 1, 1, 3, 2, 1]) [1, 2, 3] >>> nums = [1, -3, 2, 3, -1] >>> squares = (n**2 for n in nums) >>> uniques_only(squares) [1, 9, 4]
Note that the order of the returned elements should remain the same.
This is just a preview of the problem statement.
This exercise includes 3 bonuses and 10 hint links.
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