[Python-ideas] list…pushed, or something

[Bruce Leban]

On Wed, Mar 27, 2013 at 10:11 PM, Shane Green <shane at umbrellacode.com>wrote:

> [seen.added(value) for value in sequence if value not in seen]  *
>

Here's an easy way to do it:

>>> seen = set()
>>> seq = [3,2,1,2,3,4,5,4]
>>> [seen.add(v) or v for v in seq if v not in seen]
[3, 2, 1, 4, 5]
>>> seen
{1, 2, 3, 4, 5}


--- Bruce
Latest blog post: Alice's Puzzle Page http://www.vroospeak.com
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