How to create a self-referential Python 3 Enum? : <p>Can I create an enum class <code>RockPaperScissors</code> such that <code>ROCK.value == "rock"</code> and <code>ROCK.beats == SCISSORS</code>, where <code>ROCK</code> and <code>SCISSORS</code> are both constants in <code>RockPaperScissors</code>?</p>
