Скачать или смотреть Resolving the AxesSubplot Object Error in Tkinter and Matplotlib Integration

Learn how to fix the `AxesSubplot` object is not callable error when reopening Tkinter windows with Matplotlib plots. This post offers a detailed explanation and solution.
---
This video is based on the question https://stackoverflow.com/q/67769065/ asked by the user 'Mazze' ( https://stackoverflow.com/u/15803668/ ) and on the answer https://stackoverflow.com/a/67776953/ provided by the user 'Minion Jim' ( https://stackoverflow.com/u/7496549/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: 'AxesSubplot' object is not callable after reopen Tkinter window with plot

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Fixing the AxesSubplot Object Is Not Callable Error in Tkinter with Matplotlib

If you've been working with Python's Tkinter for GUI applications and Matplotlib for plotting data, you may have encountered an annoying error when attempting to reopen a window that displays a plot. This error is specifically: TypeError: 'AxesSubplot' object is not callable. In this guide, we'll explore what causes this error and how to effectively resolve it.

The Problem

The occurrence of this error typically arises when you try to create a subplot in Matplotlib and inadvertently overwrite the function name for that subplot with a variable name. This happened in a simple setup where a Tkinter window is used to display a plot generated by Matplotlib. Let's break down this issue further:

After initially creating and displaying the plot, if you close the window and try to open it again, the subsequent operation fails due to the AxesSubplot object being uncallable.

This error occurs because the function definition of the subplot (self.plot) is overridden by a variable assignment, causing confusion during subsequent calls.

Understanding the Cause

In the provided code sample, the error arises from the assignment:

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

What happens here is that self.plot which is meant to reference the AxesSubplot object, inadvertently overrides a method or function named plot in the class. When you try to execute the plot() method again after reopening the window, Python interprets self.plot as a variable (i.e., the subplot object) and raises a TypeError when it attempts to call it as if it were a function.

Here's an Example of the Problem:

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

The Solution

To solve this problem, the key is to rename either the variable or the function so they do not conflict. Here’s how you can do it effectively in your code:

Step-by-Step Fix

Rename the Plot Variable: Change the name of self.plot in your class to something more descriptive that won't conflict with the method name. For instance, consider using self.ax.

Updated Class Implementation:

Here’s an updated version of the critical part of your Graph class:

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

Final Steps

After making this change, every time you close and reopen the plot window through the Tkinter interface, you should no longer encounter the error.

This adjustment ensures your method and plotting variable do not interfere with each other, maintaining the clear functionality of your class.

Conclusion

Encountering an error like TypeError: 'AxesSubplot' object is not callable can be frustrating, especially when you're eager to see your plots. By understanding the underlying cause and how to resolve it through careful naming conventions, you can ensure your application runs smoothly. If you implement the suggested renaming in your Graph class, you should find that your plots work as intended, even after reopening your Tkinter windows. Happy coding!