Closed how to seperate file of this converter? "python

[Megabing213]

import tkinter as tk
      
class myGUI:
    def __init__(self):
        self.window=tk.Tk()
        self.window.title("converter")
        
        self.frameTop = tk.Frame(self.window)
        self.frameMid = tk.Frame(self.window)
        self.frameBottom = tk.Frame(self.window)
        
        self.label1 = tk.Label(self.frameTop,text="input inch:")
        self.enterInch = tk.Entry(self.frameTop)
        
        self.value = tk.StringVar()
        self.cm = tk.Label(self.frameMid, text="converted to cm:")
        self.outPut = tk.Label(self.frameMid,width=10,
                                textvariable =self.value)

        self.button = tk.Button(self.frameBottom,text="convert",
                                command = self.converter)
        #top
        
        self.label1.pack(side="left")
        self.enterInch.pack(side="left")
        self.frameTop.pack()
        #mid
        self
        self.cm.pack(side="left")
        self.outPut.pack(side="left")
        self.frameMid.pack()
        
        self.button.pack()
        self.frameBottom.pack()
        tk.mainloop()
        
    def converter(self):
        inch = float(self.enterInch.get())
        cm = inch * 2.54
        self.value.set(cm)

convert = myGUI()

pahelp po pano po ma separate itong prog gamit ang project>? using 2 files. sa kabila is design sa kabila is fucntion. dikopo alam ifix need help.