title: TypeError: insert() missing 1 required positional argument: 'chars'
body: <p>update: i fixed the previous issue but now i have this, i have never seen this error before
  TypeError: insert() missing 1 required positional argument: 'chars'
  if someone could explain what this means that would be great, thank you...this is the last thing i need to complete my project i have done everything else :)$ </p>
  
  <p>update: changed code now get this error:
  $ python random.py
    File "random.py", line 78
      def message(self):
                       ^
  IndentationError: unindent does not match any outer indentation level</p>
  
  <pre><code>#Imports the moduels needed
  import tkinter as tk 
  from tkinter import ttk 
  from PIL import Image, ImageTk #EDIT: This module worked for me after I installed Pillow in my computer from "http://pillow.readthedocs.io/en/4.1.x/installation.html"
  import webbrowser #imports the module for URL links
  import io, base64 #imports the module for letting images be seen without changing code
  
  #adds the URL and window for the program tkinter
  URL = "http://windowhut.com.au" #the URL used
  window = tk.Tk() #this makes the tkinter window appear
  window.title("window App") #title of the app
  window.geometry("500x500") #size of the app
  
  #define IntVar variables
  cvar = tk.IntVar()
  cvar2 = tk.IntVar()
  cvar3 = tk.IntVar()
  
  #defines the webbrowser function
  def open_ph(event):
      webbrowser.open_new_tab(URL) 
  
  #define the main button and the click button
  button = tk.Button(window, text="Welcome to Awesome pizza")
  button.grid(column=0, row=0)
  button.bind("&lt;Button-1&gt;", open_ph)
  
  #define check buttons
  check1 = ttk.Checkbutton(window, text="Meat Lovers", variable=cvar, onvalue=1, offvalue=0)
  check1.grid(column=0, row=1, padx=(5, 95))
  check2 = ttk.Checkbutton(window, text="Supreme", variable=cvar2, onvalue=1, offvalue=0)
  check2.grid(column=0, row=3, padx=(10, 120))
  check3 = ttk.Checkbutton(window, text="Vegetarian", variable=cvar3, onvalue=1, offvalue=0)
  check3.grid(column=0, row=5, padx=(10, 120))
  
  #define the option menu
  choice = tk.OptionMenu(window, tk.IntVar(), "Select your size!", "Small", "Medium", "Large")
  choice.grid(column=1, row=0, padx=(5, 95))
  
  #define labels
  name_label = tk.Label(text="Name")
  name_label.grid(column=1, row=1, padx=(10, 120))
  number_label = tk.Label(text="Contact number")
  number_label.grid(column=1, row=3, padx=(5, 95))
  address_label = tk.Label(text="Delivery address")
  address_label.grid(column=1, row=5, padx=(5, 95))
  
  #define entries
  name_entry = tk.Entry()
  name_entry.grid(column=1, row=2, padx=(5, 95))
  number_entry = tk.Entry()
  number_entry.grid(column=1, row=4, padx=(5, 95))
  address_entry = tk.Entry()
  address_entry.grid(column=1, row=6, padx=(5, 95))
  
  #defines the print function for the message board
  def message_customer():
      print(name_entry.get())
      print(number_entry.get())
      print(address_entry.get())
      name = Person(name_entry.get(), number_entry.get(), address_entry.get())
      print(name.message())                                                   
      text_answer = tk.Text(master=window, height=10, width=20)
      text_answer.grid(column=1, row=7, padx=(10, 120))
      text_answer.insert("1.0", "Thank you {name} for ordering our window, it should be ready within 30 mintues!, have a great day!".format(name=name.name, message=name.message()))
  
  #define click button function
  click_button = tk.Button(text="Complete Order", command=message_customer)
  click_button.grid(column=1, row=7, padx=(5, 95))
  
  #create class method
  class Person:
      def __init__(self, name, number=None, address=None):
          self.name = name
          self.number = number
          self.address = address
  
      def message(self):
          message = name.name + name.number + name.address - 1
          return message
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  window.mainloop()#lets the window stay open, very important
  </code></pre>