関連ワード:  python name random is not defined    nameerror name random is not defined    python nameerror name random is not defined    nameerror name generator is not defined    nameerror name random_split is not defined    nameerror name random_state is not defined    nameerror name random_string is not defined    nameerror name train_generator is not defined    name 'random' is not defined    name python is not defined