如何使用变量sub来在Python中键入类名？

Question

我目前的做法是使用一组类来定义每个目录及其文件，如下所示：

import sys
import os

class HDD():
     global Child, Parent, Type

     Child = ["Direcory1", "File1.txt"]
     Parent = "Computer"
     Type = "Local Drive"

     File1_txt = ["Hello World", "Read"]

class Directory1():
     global Child, Parent, Type

     Child = ["File1.txt", "File2.txt"]
     Parent = "HDD"
     Type = "Dir"

     File1_txt = ["Hello World Again...", "Read"]
     File2_txt = ["Hello World Again...", "Read"]

CurrentDirectory = HDD

while True:
    global Command, Split, CurrentDirectory

    Command = input(CurrentDirectory+">")

    if "dir" in Command:
        for Return in CurrentDirectory.Child:
            print(Return+" ["+CurrentDirectory.Type+"]")

当我使用dir命令时，我需要它来使用CurrentDirectory但是参考类HDD，是否有办法使这项工作，或使整个事情更有效？

注意：我正在尝试为游戏制作Windows命令行的副本，而这正在处理Python中的Windows文件系统。