[Tkinter] Entry widget : unable to get the text entered

[dlemper]

System is Windows 8.1  Python 3.5
 
The entry window appears and text can be typed, but I've been unable to get/use that text.
Have reread most websites and tried seven ways to Sunday, but nothing works.
Below is one attempt :

from tkinter import *
root = Tk()
root.geometry('600x400+80+40')

def getentry() :
    ewidget = Entry(root, width = 32)    
    ewidget.pack()
    textstring = ewidget.get()
    print("Entered  =  ",textstring)
    
def main() :
    getentry()
    mainloop()

if __name__ == '__main__' :
    main()  

 
Above prints in command line

Output:
 >>> Entered =                                 < nothing >

Surprisingly this is printed before anything is typed into Entry window.
Some sites describe use of StringVar() as below

def getentry() :

    estring = StringVar()
    ewidget = Entry(root, textstring = estring, width = 32)
    ewidget.pack()
    print("Entered  =  ",textstring)

This fails also, with Error message :

Error:
unknown option "-textstring"

Any help greatly appreciated.