Python's RandomTraversableOnce

RandomTraversableOnce.scala

import scala.util.Random

class RandomTraversableOnce[A](seq:TraversableOnce[A]){                                  
    def choice = seq.toList (new Random nextInt seq.size)                                
}

implicit def toRandomTraversableOnce[A](seq:TraversableOnce[A]) = new RandomTraversableOnce(seq)