gui program to rotate touchscreen for lenovo ideapad flex 5 14ARE05

rotater.py

#!/bin/python

import tkinter as tk
import subprocess as sp
import os

rot = ["normal", "left", "inverted", "right"]
trans = ["1 0 0 0 1 0 0 0 1", "0 -1 1 1 0 0 0 0 1", "-1 0 1 0 -1 1 0 0 1", "0 1 0 -1 0 1 0 0 1"]
devs = ["Wacom HID 5215 Finger touch", "Wacom HID 5215 Pen stylus", "Wacom HID 5215 Pen eraser"]

def rotate(r):
    nxt = rot.index(r)
    print(rot[nxt])
    sp.run(["xrandr", "-o", rot[nxt]])
    sp.run(["sleep", "1.5"])

    for dev in devs:
        sp.run(["xinput", "set-prop", dev, 'Coordinate Transformation Matrix'] + trans[nxt].split())


class Application(tk.Frame):
    def __init__(self, master=None):
        super().__init__(master)
        self.master = master
        self.pack()
        self.buttons = []
        for r in rot:
            but = tk.Button(self)
            but["text"] = r
            but["command"] = (lambda r: lambda: rotate(r))(r)
            but["font"] = "{courier 14 bold}"
            but.pack(side="left")
            self.buttons.append(but)

root = tk.Tk()
app = Application(master=root)
app.master.title("rotater")
app.mainloop()