Example teaching program

battle.py

import random

hero_hp = random.randint(500, 1000)
minotaur_hp = random.randint(1000, 2000)

damage_base = 100
heal_base = 50

while True:
    print("Hero HP: {}".format(hero_hp))
    print("Minotaur HP: {}".format(minotaur_hp))
    print()
    print("1) Attack for {}-{} damage".format(damage_base, damage_base*2))
    print("2) Power up for 50% extra damage")
    print("3) Heal {}-{} HP".format(heal_base, heal_base*2))
    print()

    choice = input("Your action: ")
    print()

    if choice == "1":
        damage = random.randint(damage_base, damage_base * 2)
        minotaur_hp -= damage
        print("You dealt {} damage!".format(damage))

        if minotaur_hp <= 0:
            print("You win!")
            break

    elif choice == "2":
        damage_base = int(damage_base * 1.5)
        print("You powered up! Damage increased!")

    elif choice == "3":
        heal = random.randint(heal_base, heal_base * 2)
        hero_hp += heal
        print("You healed {} HP!".format(heal))

    else:
        print("Bad choice!")
        continue

    minotaur_damage = random.randint(40, 100)
    hero_hp -= minotaur_damage
    print("The minotaur attacked for {} damage".format(minotaur_damage))

    if hero_hp <= 0:
        print("You lose!")
        break

    print()