simple_example.py

import gym_super_mario_bros
from gym_super_mario_bros.actions import RIGHT_ONLY

from nes_py.wrappers import JoypadSpace

ENV_NAME = 'SuperMarioBros-1-1-v0'

env = gym_super_mario_bros.make(ENV_NAME, render_mode='human', apply_api_compatibility=True)
env = JoypadSpace(env, RIGHT_ONLY)

done = False
env.reset()
counter = 0
while not done:
    # Only go right
    # action = RIGHT_ONLY.index(['right'])
    
    # Choose random action
    action = env.action_space.sample()

    _, _, done, _, _ = env.step(action)
    env.render()