core.py 文件源码

def __init__(self, env):
        super(Wrapper, self).__init__(env)
        if not env.metadata.get('runtime.vectorized'):
            if self.autovectorize:
                # Circular dependency :(
                from universe import wrappers
                env = wrappers.Vectorize(env)
            else:
                raise error.Error('This wrapper can only wrap vectorized envs (i.e. where env.metadata["runtime.vectorized"] = True), not {}. Set "self.autovectorize = True" to automatically add a Vectorize wrapper.'.format(env))

        self.env = env