Is there a built-in that removes duplicates from list in Python, whilst preserving order? I know that I can use a set to remove duplicates, but that destroys the original order. I also know that I can roll my own like this:
def uniq(input):
output = []
for x in input:
if x not in output:
output.append(x)
return output
(Thanks to unwind for that code sample.)
But I’d like to avail myself of a built-in or a more Pythonic idiom if possible.
Related question: In Python, what is the fastest algorithm for removing duplicates from a list so that all elements are unique while preserving order?
