django-admin startproject 给出 SyntaxError

Question

I tried to start a new project with django 4.0 After installing Django in environment folder (Anaconda/envs/taskman) I created a new folder somewhere in my e: drive and by using windows command line created a new folder Django_site. Then from this folder I typed in command line prompt: django-admin startproject lifetool and got the following:

    (taskman) E:\Projects\Django_site>django-admin startproject lifetool
    Traceback (most recent call last):
    File "E:\Programs\Anaconda\envs\taskman\Scripts\django-admin- 
    script.py", line 5, in <module>
    from django.core.management import execute_from_command_line
    File "E:\Programs\Anaconda\envs\taskman\lib\site- 
    packages\django\core\management\__init__.py", line 16, in <module>
    from django.core.management.base import (
    File "E:\Programs\Anaconda\envs\taskman\lib\site- 
    packages\django\core\management\base.py", line 13, in <module>
    from django.core import checks
    File "E:\Programs\Anaconda\envs\taskman\lib\site- 
    packages\django\core\checks\__init__.py", line 18, in <module>
    import django.core.checks.translation  # NOQA isort:skip
    File "E:\Programs\Anaconda\envs\taskman\lib\site- 
    packages\django\core\checks\translation.py", line 3, in <module>
    from django.utils.translation.trans_real import language_code_re
    File "E:\Programs\Anaconda\envs\taskman\lib\site- 
    packages\django\utils\translation\trans_real.py", line 485
    while (i := lang_code.rfind('-', 0, i)) > -1:
         ^
   SyntaxError: invalid syntax

What is wrong? Do I need to correct invalid syntax in installed Django package? Help me to clarify the issue

Answer 1

The "walrus operator" := was introduced in Python 3.8 . You must be using an earlier version of Python.

Since Django 4.0 only officially supports Python 3.8, 3.9, and 3.10 , you'll either need to use a newer version of Python or an older version of Django.

Answer 2

proper commands are:

python -m django --version

Django 4.0

django-admin startproject lifetool

the project structure will be

lifetool/
manage.py
lifetool/
    __init__.py
    settings.py
    urls.py
    asgi.py
    wsgi.py

python manage.py runserver

BOOM server is running:

Django version 4.0, using settings 'lifetool.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.

Answer 3

I don´t know if you did it this way, but try to install django by the command python -m pip install Django More info here