title: insert() missing 1 required positional argument
body: <p>i have made 2 diffrent codes in 2 diffrent files the first one is </p>
  
  <p>and i imported this file in another file and tried ti execute it with value but its showing insert takes 2 positional argument but 1 was given.
  the file in which i imported this is as follows</p>
  
  <p>i am comparetively new to this stuff and i need it for my school project will any one plz help me to figure out the error in the code ... thanks</p>
  
  <pre><code>from tkinter import *
  
  class Gtn:
      def insert(self,value):
          self.value = value
          self.val = val
          val= str(value.get())
          print(val)
  
  
  from tkinter import *
  from gt_ent import Gtn as g
  
  wn = Tk()
  
  e = Entry(wn)
  e.pack(anchor ='nw')
  
  b= Button(wn, text='lets see ', command = lambda: g.insert(e)).pack(anchor ='nw')
  </code></pre>