Django environment installation

1. Installation environment

1.1 Install Python (configure virtual environment)

Since foreign sources are slow, you can add Tsinghua sources via pip.

 pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple

1.1.1 Steps

Create a virtual environment
```
python -m venv django4_2
```
erp_venv is the name of the virtual environment

Python virtual environment and install it in erp_venva folder in your current directory. A virtual environment can help you isolate the dependent libraries of different projects, thus avoiding library version conflicts between projects.
Start virtual environment

Enter the virtual environment directory
```
cd ./Scripts/activate
```
Exit the virtual environment
```
deactivate
```
Install Django
```
pip install django
```
Django is a Python web framework that provides many features such as ORM, authentication, forms, templates, etc., which can help you develop web applications faster and easier.
Install DRF
```
pip install djangorestframework
```
DRF is a powerful and flexible RESTful framework based on Django, which provides many tools and libraries to help you quickly develop web applications based on RESTful API.
Install Django-Filter
```
pip install django-filter
```
介绍：Integration with DRF — django-filter 23.2 documentation

Django-Filter is a Django-based library that provides a simple and flexible way to filter querysets of Django models. Django-Filter's API allows developers to use simple query expressions to build and apply complex filters to select and exclude data from query sets.

Through the integration with DRF Spectacular, Django-Filter supports data filtering and query expressed by OpenAPI specifications, and provides a more elegant API specification solution.
Install Django Spectacular
```
pip install drf_spectacular
```
Introduction: DRF Spectacular is DRF's OpenAPI specification tool. It can automatically build and generate OpenAPI specification documents, and provide convenient API testing tools, making it easier for you to create, test and maintain RESTful APIs. At the same time, it also supports integrated Django Filter, allowing you to filter query data through URL parameters.

1.2 Conda configuration environment

conda configures the python interpreter, and the environment is named django4_2

conda create -n django4_2 python=3.8
# 激活环境
conda activate django4_2

Install django==4.2 library
```
pip install django==4.2
```
Install DRF
```
pip install djangorestframework
```
Install Django-Filter
```
pip install django-filter
```
In the virtual environment, install the debug_toolbar library
```
pip install django-debug-toolbar
```