Skip to Content
Python GUI Programming with Tkinter
book

Python GUI Programming with Tkinter

by Alan D. Moore
May 2018
Beginner to intermediate content levelBeginner to intermediate
452 pages
11h 26m
English
Packt Publishing
Content preview from Python GUI Programming with Tkinter

Building a login window

Tkinter does not provide us with a ready-made login dialog, but it does provide us with a generic Dialog class which can be subclassed to create custom dialogs.

Import this class from tkinter.simpledialog into our views.py file:

from tkinter.simpledialog import Dialog

Let's start with our class declaration and __init__() method:

class LoginDialog(Dialog):

    def __init__(self, parent, title, error=''):
        self.pw = tk.StringVar()
        self.user = tk.StringVar()
        self.error = tk.StringVar(value=error)
        super().__init__(parent, title=title)

Our class will take a parent as usual, a window title, and an optional error, which will be used in case we need to re-display the dialog with an error message (for example, if the password is ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Python GUI Programming with Tkinter - Second Edition

Python GUI Programming with Tkinter - Second Edition

Alan D. Moore

Publisher Resources

ISBN: 9781788835886Supplemental Content