Programming & Technology

When you operate on a python string, it will create a new python string based on the original string. The original string value will not be changed. This article will list some python string operation example.

When I run my python script code, I meet an error like this IndentationError: unindent does not match any outer indentation level. This error is so strange and hard to find the reason. After some investigation, I finally find the solution.

This article will tell you how to add static CSS or js files in your Django project, and how to reference the static js or CSS files in Django template HTML files.

Morden web application are all designed with MVC( Model, View, Controller ) pattern. But in django, the pattern name is MTV( Model, Template, View Function ). So in django, template html is the view, and view function plays the role of controller. This article will tell you how to create template and view function in

The package IPython.display provides a lot of classes for you to display rich media objects in the Jupyter notebook directly and immediately. Using classes in the IPython.display package, you can display audio (local or remote ), video(youtube or local ), image, local file links, Html data in the Jupyter notebook. This article will show you

When you use SQLite3 as your Django application backend database, you may need to change or even drop tables from the SQLite3 database. This article will tell you how to do that.

When you develop a Django app, you always need to change the model fields. But how to make the changes take effect (add/remove table column to/from backend database table ). To a beginner, this question may be confused. This article will tell you how to do it.