How to customize the entry widget for some huge entries in python code example

Example 1: tkinter entry

from tkinter import *
root = Tk()
entry = Entry(root)
print(entry.get()) # Would print entry data in CL

Example 2: write in entry() in tkinter

from Tkinter import *

master = Tk()

e = Entry(master)
e.pack()

e.focus_set()

def callback():
    print e.get()

b = Button(master, text="get", width=10, command=callback)
b.pack()

mainloop()