from tkinter import *
class EntryDemo:
    def __init__(self, rootWin):
        self.button = Button(rootWin,text="enter",
                             command=self.clicked)
        self.button.pack()

        self.entry = Entry(rootWin)
        
        # Modify the text of the Entry widget directly
        # 1) delete and 2) add text in the Entry widget
        self.entry.delete(0,END)
        self.entry.insert(0,"type your name here")

        self.entry.pack()

        self.ourRoot = rootWin

    def clicked(self):
        print("Button was clicked!")

        # get text from the Entry widget
        eText = self.entry.get()

        print(eText)
        

rootWin = Tk()
app = EntryDemo(rootWin)
rootWin.mainloop()