Tkinter help - Why this behavior ? (py3)

[Dodo]

Le 09/06/2010 18:49, rantingrick a écrit :
> On Jun 5, 8:46 am, Dodo<dodo_do_not_wake... at yahoo.Fr>  wrote:
>> Hi,
>>
>> let's consider this exemple :
>>
>> from tkinter import *
>> from tkinter.ttk import *
>>
>> class First:
>>          def __init__(self):
>>                  self.root = Tk()
>>                  B = Button(self.root, command=self.op)
>>                  B.pack()
>>
>>                  self.root.mainloop()
>>
>>          def op(self):
>>                  Second(self)
>>                  print("print")
>>
>> class Second:
>>          def __init__(self, parent):
>>                  root = Toplevel(parent.root)
>>                  root.grab_set()
>>
>>                  root.mainloop()
>>
>
>
> Please don't write code like this, it is very, very, very, very ugly.
> Python is an OOP language do use that to your advantage and you will
> make your life much easier! Here is a better alternative.
>
>
> import Tkinter as tk
> from Tkconstants import *
> import tkSimpleDialog
>
> class MyDialog(tkSimpleDialog.Dialog):
>      def body(self, master):
>          prompt = "Hello from my custom dialog!\nAlthough with
> something this simple i should have used tkMessageBox."
>          tk.Label(self, text=prompt).pack()
>
>      def validate(self):
>          print 'I need to put some code here, maybe'
>          return True
>
>      def apply(self):
>          print 'I need to put some code here, maybe'
>
>
> class App(tk.Tk):
>      def __init__(self):
>          tk.Tk.__init__(self)
>          b=tk.Button(self, text='Show Dialog', command=self.showDialog)
>          b.pack(padx=5, pady=5)
>
>      def showDialog(self):
>          d = MyDialog(self)
>
> if __name__ == '__main__':
>      app = App()
>      app.mainloop()

Could you please explain to me what's the big difference?

Dorian