Скачать или смотреть Fixing IsADirectoryError: [Errno 21] When Using Pathlib in Python

Learn how to resolve the `IsADirectoryError` encountered while trying to preprocess a folder of images using Pathlib in Python. We will guide you through the necessary changes to make your script work effectively with the ABBYY service.
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This video is based on the question https://stackoverflow.com/q/75605010/ asked by the user 'aarya' ( https://stackoverflow.com/u/16588044/ ) and on the answer https://stackoverflow.com/a/75605062/ provided by the user 'Florent Monin' ( https://stackoverflow.com/u/20121320/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Understanding and Fixing IsADirectoryError: [Errno 21] with Pathlib in Python

When working with file systems in Python, especially using the pathlib module, you might encounter an error like IsADirectoryError: [Errno 21]. This commonly happens when you pass a directory path to a function that expects a file path. In this guide, we'll discuss how to properly preprocess a folder of images with the ABBYY service, and we'll provide you with clear steps to avoid this error.

What Went Wrong?

The primary reason for the IsADirectoryError in this context is that the function get_preprocessed_image(image_path) is being called with a directory path, rather than a path to an actual image file. This function is designed to process individual images, but once the path to the directory is passed, it doesn't know how to handle it because it expects a specific file type.

Example of the Error in Your Code

Here is the critical part of the provided code that leads to the error:

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

The Solution

To fix the issue, you need to change the way you call your functions. Instead of passing the directory directly to get_preprocessed_image, you should use the preprocess_image_folder_ function, which is designed to handle the entire folder of images. Here’s how you can do that.

Step-by-Step Fix

Locate the Entry Point of Your Script:
You want to make changes to the section of your script where the main execution happens.

Call the Correct Function:
Replace the call to get_preprocessed_image with a call to preprocess_image_folder_. This way, your script will loop through each file in the directory and pass each image path to the get_preprocessed_image function.

Revised Code Example:
Here’s the corrected section of your code:

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

Putting It All Together

Here is the final structure of the provided code after the fix:

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

Conclusion

By updating the function call where the main execution takes place, you can successfully preprocess all images in your specified folder without encountering IsADirectoryError. Remember, always ensure that the functions you call expect the appropriate types of arguments—files vs. directories—to avoid common pitfalls in programming.

Happy coding, and may your image preprocessing tasks run smoothly!