如何从一个类检索条目输入并在另一个类中使用它？ （Python 3.7.1）

Question

我一直在试图找到解决此问题的方法，但是我似乎陷入了困境。我试图从一个类的用户（他们的名字）中输入条目，然后将该条目输入到另一个类的标签中，这样我就可以创建一个基于文本的游戏。这是我现在的代码的简化形式：

from tkinter import *

class Page6(Tk):
  def Page6():
    window=Toplevel()
    window.geometry("1920x1080")
    window["bg"] = ("#FFB6C1")
    window.title("Dating Simulator")

    iag = PhotoImage(file="Images\ClassroomTextBoxThree.gif")
    labelfour = Label(window, image=iag)
    labelfour.place(x=-100,y=-50)
    labelfour.photo = iag

    textThree = Label(window, text ="Hello What is your Name?", font= "Times 15")
    textThree.place( x = 80, y = 60)

    #add name to code/username below
    #the code below is where I want to retrieve the input from class Page2

    MyButton1 = Button(window, text="Hello my name is" +  E1.get(), width=10, font="Times 20", command=Page7.Page7)
    MyButton1.place(x=1120, y=275)

class Page2(Tk):
  def Page2():
    window=Toplevel()
    window.geometry("1920x1080")
    window["bg"] = ("#FFB6C1")
    window.title("Dating Simulator")

    imag = PhotoImage(file="Images\Minami.gif")
    labelthree = Label(window, image=imag)
    labelthree.place(x=-100,y=-50)
    labelthree.photo = imag
    #labelthree.pack(side="right")

    #E1 is where the user should input their name 

    E1 = Entry(window, bd = 5)
    E1.place(x=1100, y= 675)

    EntryOne = Label(window, text = "Please insert your name (First name only):", font = "Times 20", bg ="#ffffff")
    EntryOne.place(x=600,y=200)

    MyButton1 = Button(window, text="Submit", width=10, font="Times 20", command=Page3.Page3)
    MyButton1.place(x=1090, y=725)

我尝试从其他帖子中查找其他解决方案，但要么只涉及从一个类中获取数据，要么仅涉及一个变量，而不涉及条目输入。工作产品应使按钮（来自第6类）的按钮包括来自第2类的用户输入的名称作为其文本的一部分。非常感谢您阅读。