我一直在用 Python 3.8 编写代码来帮助我研究事物，我想把它变成一个 GUI。当我这样做时，每当我点击“开始”按钮时都会收到此错误。如果你们中的任何人看到错误，这里是代码。

# Imports
import wikipedia
from tkinter import *
import time

# Code
def Application():
    # Definitions
    def Research():
        # Defines Entry
        Result = wikipedia.summary(Term)

        print(Result)

    # Window Specifications
    root = Tk()
    root.geometry('900x700')
    root.title('Wikipedia Research')

    # Window Contents
    Title = Label(root,text = 'Wikipedia Research Tool',font = ('Arial',25)).place(y = 10,x = 250)

    Directions = Label(root,text = 'Enter a Term Below',font = ('Arial,15')).place(y = 210,x = 345)

    Term = Entry(root,15')).place(y = 250,x = 325)

    Run = Button(root,15'),text = 'Go',command = Research).place(y = 300,x = 415)

    # Mainloop
    root.mainloop()

# Run Application
Application()