python - pycharm return outside of function

Question

class data_list:
    file_list = os.listdir(os.getcwd())
    data_file = []
    for i in file_list:
        if i.endswith('.js'):
            data_file.append(i)
    return data_file

I don’t know why this error is reported. May I ask what is wrong?

Answer 1

What you defined above is a classclass data_list, not a function.