Ben Chuanlong Du's Blog

It is never too late to learn.

ImportError: Attempted Relative Import With No Known Parent Package

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Symptom

ImportError: Attempted Relative Import With No Known Parent Package

Solution

The best solution is to run the Python script as a Python module. However, you have to add the directory …

The Checkbutton Widget in Tkinter

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

  1. ttk.Checkbutton is preferred to tk.Checkbutton.

  2. It seems to me that the Checkbutton.bind doesn't work. However, specifying a callback function using the command option when creating a Checkbutton still …

The Entry Widget in Tkinter

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

  1. ttk.Entry is preferred over tk.Entry.

  2. ttk.Entry/tk.Entry does not have a set method to set the text directly. Instead, you have to first delete the text and …

The Label Widget in Tkinter

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

General Tips

  1. ttk.Label is preferred over tk.Label.

Change the Text of a Label

After creating a Label (whose text has already been set), there are 3 different approaches that …

Use Tkinter to Build GUI Applications in Python

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Installation

Tkinter should be available by default after Python is installed. However, please continue read if you encounter the following error.

import _tkinter # If this fails your Python may not be …