Tkinter窗口显示不正确（入口未显示）

from functools import partial 
from random import randint 
from tkinter import * 

def click3(a,b, c): 
    if int(a) == b: 
     c.delete(0.0, END) 
     c.insert(END,"That's correct!") 
    elif int(a) < b: 
     c.delete(0.0, END) 
     c.insert(END,"A bit higher") 
    elif int(a) > b: 
     c.delete(0.0, END) 
     c.insert(END,"A bit lower") 

gtnCorrect = randint(1,1000) 
gtnWin = Tk() 
gtnWin.title("Guess the number") 
gtnWin.configure(bg='black') 
Label(gtnWin, text = "Guess a number from 1-1000", bg='black',fg='white',font = '10').grid(row=0,column=0,sticky=W) 
gtnGuess = Entry(gtnWin, width = 10, bg='white') 
gtnGuess.grid(row = 1,column=0,sticky=W) 
op = Text(gtnGuess, width = 20, height = 1, wrap=WORD,background='white') 
op.grid(row = 2, column = 0,sticky=W) 
part2 = partial(click3, gtnGuess.get(),gtnCorrect,op) 
Button(gtnWin, text = "Submit", width = 6, command = part2).grid(row = 3,column=0,sticky=W)

大家好。Tkinter窗口显示不正确（入口未显示）

我的代码的这部分工作不正常，我想知道是否有人知道为什么。当我运行它时，输入框不显示，只有标签，文本框和提交按钮。

感谢

来源

2017-10-11 Daniel