如何在 Django admin 中添加自定义批量操作的方法

在 Django 的 admin 界面中，你可以通过在你的 `ModelAdmin` 类中定义一个方法，然后将这个方法的名称添加到 `actions` 列表中，来实现自定义的批量操作。 以下是一个简单的例子，假设你有一个 `Article` 模型，你想要添加一个批量操作来将选定的文章标记为已发布： ```python from django.…

在 Django 中如何返回403状态

在 Django 中，如果你需要在视图函数或者类视图中返回 HTTP 403 Forbidden 响应，你可以使用 `django.http.HttpResponseForbidden` 类。 以下是一个在视图函数中返回 403 响应的简单例子： ```python from django.http import HttpResponseFo…

Python3 中进行 URL 解码

在 Python3 中，可以使用内置的 `urllib.parse` 模块来进行 URL 解码，也就是 URL decode。以下是一个简单的例子： ```python from urllib.parse import unquote # 一个需要解码的 URL 字符串 url = "https%3A//www.example.com/pa…

Django: How to use list_display to display fiel…

To control which fields are displayed on the change list page, set list \_ display. ``` list_display = ('first_name', 'last_name') ``` If you don’t set list\_display, the admi…

How do I call an external command within Python…

Here is a summary of ways to call external programs. Os.system passes the command and arguments.This is nice because you can actually run multiple commands at once in this manne…

python mongodb sort by field

Sort the Result Sort oppress. ----------------------------- Use the sort() method to sort the result. The sort() method takes one parameter for ascending is the default direct…

Django: How to check the Django version you're …

You might be wondering () what is the version of Django you are using right now. Method 1 -------- ``` python -m django --version ``` Method 2 -------- ``` django-admin -…

How to read and parse JSON using json.load()

Python supports JSON through a built-in package called JSON.To use this feature, we import the JSON package in the script.The text in JSON is through quoted-string. It contains th…

How to Read and Parse JSON files with Python

What JSON is? ------------- JSON is short for Javascript Object Notation .A simple structure and popular for information exchange between servers and clients is JSON data.It is …

How to Install Some Project from PyPI, VCS, and…

Pip is recommended installer.You need to make sure you have pip available.You can test this by running: ``` python3 -m pip --version ``` Installing from PyPI ----------------…