How to Create an Indeterminate Progress Bar in Tkinter with Python

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Learn how to add an `indeterminate` progress bar using Tkinter in Python, complete with a functional example and detailed explanations.
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How to Create an Indeterminate Progress Bar in Tkinter with Python

If you're developing a graphical user interface (GUI) in Python using Tkinter, you might want to enhance user experience with a progress bar. Particularly, an indeterminate progress bar is beneficial when you do not know how long a process will take. This article walks you through the process of creating an indeterminate progress bar and running it effectively alongside a simple function.

Understanding the Problem

The Original Solution

The original attempt to run a progress bar involved a function that started the bar, performed a sleep operation, and then stopped the bar. Unfortunately, wrapping the sleep operation in the same thread caused the progress bar not to function correctly. This led to the need for an improved solution.

Step-by-Step Guide to the Solution

We will simplify the function to utilize threading. This allows the GUI to remain responsive while the progress bar is running.

Step 1: Setting Up Your Environment

Make sure you have Tkinter installed in your Python environment. It comes pre-installed with standard Python distributions.

Step 2: Creating the GUI Layout

Start by initializing the Tkinter GUI:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Defining the Threading Logic

Define a thread that will manage the loading of the progress bar while performing additional actions without freezing the GUI:

[[See Video to Reveal this Text or Code Snippet]]

Step 4: Implementing the Progress Bar Function

Create the print_cf function that starts the progress and prints to the console while the progress bar runs:

[[See Video to Reveal this Text or Code Snippet]]

Step 5: Adding the Button and Progress Bar

Include the button that will trigger the progress bar and set up the progress bar itself:

[[See Video to Reveal this Text or Code Snippet]]

Full Code Example

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By implementing threading, you ensure the Tkinter application remains responsive while the progress bar runs. This not only improves user experience but also effectively indicates that a process is ongoing. Try out this example in your own Tkinter projects for better navigation and feedback during lengthy operations!
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