roll.kt

import java.util.Random

class Roll {
  private val random = Random()

  fun roll(n: Int = 1, d: Int = 6): String {
    val res = (1..n).map { this@Roll.random.nextInt(d) + 1 }
    return "${res.joinToString()} = ${res.sum()}"
  }

  fun roll(input: String): String {
    val (n, d) = input.split("d").map { it.toInt() }
    return roll(n = n, d = d)
  }
}

roll.py

from random import randrange

def roll(n=1, d=6):
  if type(n) == str:
    return roll(*[int(x) for x in n.split('d')])
  res = [randrange(1, d + 1) for i in range(n)]
  return '{} = {}'.format(', '.join([str(x) for x in res]), sum(res))