Share tips and methods for Django version query

Sharing Django version query skills and methods

Introduction:
Django is a powerful Python Web framework that provides developers with many convenient functions and tool. In daily development, it is very important to understand the version of Django, because each version has its own features and changes. This article will share some tips and methods for querying Django versions and provide specific code examples.

1. Use django.VERSION to query the version number
Django provides a built-in variable django.VERSION to obtain the currently installed Django version. The following is a simple code example that shows how to use django.VERSION to query the Django version number:

import django

print("Django版本号：", django.VERSION)

This code snippet will output the currently installed Django version number, such as (3, 2, 7, 'final ', 0).

2. Use the pip show command to query the version number
In addition to using Django’s built-in django.VERSION variable, you can also use the pip show command to query the version number of the Django package. The following is a simple code example that shows how to use the subprocess module to execute a command and obtain the return result:

import subprocess

result = subprocess.run(['pip', 'show', 'django'], capture_output=True, text=True)
output = result.stdout

for line in output.split('
'):
    if line.startswith('Version: '):
        version = line.split(' ')[1]
        print("Django版本号：", version)

This code snippet will execute the pip show django command and extract the version number from the output result. For example, if the Django version is 3.2.7, the output will be: "Django version number: 3.2.7".

3. Use the get_version() method provided by Django to query the version number
Django also provides a get_version() method to obtain the currently installed Django version number. The following is a simple code example that shows how to use the get_version() method to query the current Django version number:

from django import get_version

version = get_version()
print("Django版本号：", version)

This code snippet will output the currently installed Django version number, such as "3.2.7".

4. Use the django-admin tool to query the version number
Django provides a django-admin tool that can query the Django version number from the command line. The following is a sample command that shows how to use the django-admin tool to query the Django version number:

django-admin --version

After executing the above command, the currently installed Django version number will be output, such as "3.2.7".

Summary:
Querying the Django version is an important task in development. This article introduces several techniques and methods for querying the Django version, and provides specific code examples. Developers can choose the appropriate method to query and manage Django versions according to their own needs in order to better develop and maintain Django applications. I hope these tips and methods can be helpful to everyone.

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