Tkinter on Mr. Pointing

Geometry Managers

Sun, 09 Mar 2025 00:00:00 +0000

Controlling Layouts with Geometry Managers

Tkinter has three geometry managers, or methods that define how the content of your app is structured. .pack() is just one of them; we also could use .place() or .grid(). You can only use one at a time, so let’s discover the instances in which we’d use them.

`.pack()`

When using .pack(), you’re actually using a packing algorithm in order to place the widgets on screen. It accomplishes this in two steps;

Interactive Applications

Sun, 09 Mar 2025 00:00:00 +0000

The above has taught you how to make things appear inside your window. This will only get you so far; the things in your window need to do things. Let’s learn about events.

Using Events and Event Handlers

Going back to when we learned about the window.mainloop(), the loop this starts is known as the event loop. During this, the window will wait for some response. All we have to code is the events that we want to happen in response to these events, otherwise known as event handlers.

Widgets

Sun, 09 Mar 2025 00:00:00 +0000

Below are a few different types of widgets;

Label: displays text
Button: displays a button that can have text and do action commands
Entry: displays a text input form for a single line
Text: displays a text input form for multi-line entry
Frame: a rectangular area for widgets or padding between widgets

There are many more widgets, as well as themed widgets, which are more updated versions of classic widgets, but we don’t need to get into that today.

Your First App

Sun, 27 Oct 2024 00:00:00 +0000

Link to the tutorial.

What makes Tkinter nice is that it’s a built-in library, meaning it should come with all versions of Python 3.12. If you’re using Ubuntu (like me) for this example you will have to install it but it doesn’t take long at all (sudo apt-get install python3-tk).

Creating your first window is incredibly simple. The following code will get you up and running in no time:

import tkinter as tk

window = tk.Tk()

words = tk.Label(text="I Love Python!")
words.pack()

if __name__ == "__main__":
	window.mainloop()

The above code will give you an empty window that will stay open until you close it.