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This article mainly explains the "Flask how to customize the error page", the article explains the content is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in depth, together to study and learn "Flask how to customize the error page" bar!

Today, we will deal with the blueprint of the new error page created for the Flask_Blog project before. When it is finished, we will provide custom error pages for 403404 and 500error. Let's start with:

Create a new folder errors under Flask_Blog\ flaskblog, and create an empty _ _ init__.py and error-handling python file handlers.py under Flask_Blog\ flaskblog\ errors:

Modify Flask_Blog\ flaskblog\ _ _ init__.py to add a blueprint for error handling:

Create a new folder errors under Flask_Blog\ flaskblog\ templates, and create pages 403,404,500 that need to be redirected if the corresponding error occurs under errors:

Then we open the command line cmd in the folder Flask_Blog, run python run.py, and access the address http://127.0.0.1:5000/test, which does not exist:

Then log in to the blog with admin and visit a post posted by user test to update the address http://127.0.0.1:5000/post/6/update:.

Thank you for your reading, the above is the content of "Flask how to customize the error page", after the study of this article, I believe you have a deeper understanding of how to customize the error page of Flask, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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