Bug for version 1.7.3: 'str' object has no attribute 'action'

[titoeb]

With version 1.7.3 installed via pip the following code

from kaggle_environments import make, evaluate
import random

def random_agent(obs, conf):
    return random.randrange(conf.banditCount)

env = make("mab", debug=True)
env.run([random_agent, random_agent])
res = env.render(mode="ansi")

leads to a str' object has no attribute 'action'-error.

There are two options to fix the problem.
Either change in core.py line 279 to args = [self.steps, self] (don't know how that would interact for the other environments)
or use env.steps[i] in line 135 of mab.py. I will create a PR with the latter option, although I think the first option, if done correctly would lead to a better implementation. Also interesting, that the argument of the renderer function is called steps but effectively gets the env.state object.