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

Using the login window

To use the dialog, our application needs a method that will display the dialog in an infinite loop until either the user clicks Cancel or the provided credentials successfully authenticate.

Start a new database_login() method in Application:

        def database_login(self):
            error = ''
            db_host = self.settings['db_host'].get()
            db_name = self.settings['db_name'].get()            title = "Login to {} at {}".format(db_name, db_host)

We begin by setting up an empty error string and a title string to pass to our LoginDialog class.

Now we'll start the infinite loop:

        while True:
            login = v.LoginDialog(self, title, error)
            if not login.result:
                break

Inside the loop, we create a LoginDialog, which will block until the user clicks one button or ...

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