包名错了，是python3-tk

try:
    print('本配置程序依赖 tkinter (python3-tk)')
    from tkinter import *
    from tkinter import scrolledtext
    import tkinter.messagebox as mbox
    import tkinter.filedialog as fdialog
except:
    os.system('notify-send "检测到缺少依赖 python3-tk 尝试安装...需要 sudo 权限，请在终端中执行以便输入密码"')
    print('检测到缺少依赖 python3-tk 尝试安装...')
    os.system('sudo apt -y install python3-tk')
    from tkinter import *
    from tkinter import scrolledtext
    import tkinter.messagebox as mbox
    import tkinter.filedialog as fdialog