使用tkinter创建python GUI并尝试使用OOP

Question

我对python完全陌生， 这段代码我一直在遵循“pythonggui编程食谱”一书中的步骤 GUI工作正常，但方法不起作用请帮助：

import tkinter as tk
from tkinter import ttk
from tkinter import scrolledtext
from tkinter import Menu
from tkinter import messagebox as mBox
from tkinter import Spinbox


class OOP:
    def __init__(self):
        self.win=tk.Tk()
        self.win.title("silver and gold")
        self.win.iconbitmap(r'E:\hydra-logo.ico')
        self.GUI()

    def click_me(self):
        self.action.configure(text = "item has been added-- "+ self.matrial.get()+self.weight.get())

    def quit(self):
        self.win.quit()
        self.win.destroy()
        exit()

    def msgbox(self):
        answer=mBox.askyesno('','are you satisfied ?  ')
        if answer==True:
            print("+1 satisfied ")
        else:
            print("+1 unsatisfied ")

    def spin(self):
        value= self.spin.get()
        print(value)
        self.scr.insert(tk.INSERT,value+'\n')

    def GUI(self):
        tabcontrol=ttk.Notebook(self.win)

        tab1=ttk.Frame(tabcontrol)
        tabcontrol.add(tab1,text = 'Entry')

        tab2=ttk.Frame(tabcontrol)
        tabcontrol.add(tab2,text = "Storage")

        tab3=ttk.Frame(tabcontrol)
        tabcontrol.add(tab3,text = "customers")

        tab3=tk.Frame(tab3,bg = 'blue')
        tab3.pack()

        tabcontrol.pack(expand = 1,fill = "both")

        safezone=ttk.LabelFrame(tab1,text = 'my comfort zone')
        safezone.grid(column = 0,row = 0)

        mBox.showinfo('',"Running  ")

        ## my safe zone

        storage=ttk.LabelFrame(tab2,text = 'your storage is here')
        storage.grid(column = 0,row = 0)

        for orangecolor in range(2):
            canvas=tk.Canvas(tab3,width = 150,height = 80,highlightthickness = 0,bg = 'orange')
            canvas.grid(row = orangecolor,column = orangecolor)

        menuBar=Menu(self.win)
        self.win.config(menu = menuBar)

        fileMenu=Menu(menuBar,tearoff = 0)
        HelpMenu=Menu(menuBar,tearoff = 0)
        menuBar.add_cascade(label = "File",menu = fileMenu)
        menuBar.add_cascade(label = "Help",menu = HelpMenu)
        HelpMenu.add_command(label = "About",command = self.msgbox)

        fileMenu.add_command(label = "New")
        fileMenu.add_command(label = "Exit",command = quit)
        fileMenu.add_checkbutton(label = "Night Mode")

        labelsFrame=ttk.LabelFrame(storage,text = "made by essam")
        labelsFrame.grid(column = 0,row = 9,padx = 10,pady = 0)


        ttk.Label(safezone,text = "Choose a metal: ").grid(column = 0,row = 0)
        ttk.Label(safezone,text = "type the weight: ").grid(column = 1,row = 0,sticky = 'W')

        weight=tk.StringVar()
        wightEntered=ttk.Entry(safezone,width = 12,textvariable = weight)
        wightEntered.grid(column = 1,row = 1)
        wightEntered.focus()

        matrial=tk.StringVar()
        matrialEntered=ttk.Combobox(safezone,width = 12,textvariable = matrial,state = 'readonly')
        matrialEntered.grid(column = 0,row = 1)
        matrialEntered [ 'values' ]=("Gold","silver")
        matrialEntered.current(0)

        action=ttk.Button(safezone,text = "add ",command = self.click_me)
        action.grid(column = 4,row = 1)

        radVar=tk.IntVar()
        radVar.set(99)
        colors=[ "blue","gold","red" ]

        spin=Spinbox(safezone,values = (1,2,4,42,100),width = 5,borderwidth = 20,
            relief = tk.SUNKEN,command = self.spin)
        spin.grid(column = 2,row = 1)

        scrolW=30
        scrolH=3
        scr=scrolledtext.ScrolledText(safezone,width = scrolW,height = scrolH,wrap = tk.WORD)
        scr.grid(column = 0,columnspan = 5,row = 7)



    #******




oop =OOP()
oop.win.mainloop()