For the “get_roll” function, how would I split a user's input, for example, “1d3”, meaning 1 roll for a 3 sided dice, as a random integer?

Question

import random

def get_damage(attack, defense):
  if get_roll(attack) > get_roll(defense):
    return get_roll(attack) - get_roll(defense)
  else:
    return 0

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