Question

在我在计算机上创建另一个Django项目之前，此Django项目正在运行。但是今天，当我运行该项目时，它显示了诸如==

之类的错误消息

Traceback (most recent call last):
  File "manage.py", line 15, in <module>
    execute_from_command_line(sys.argv)
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\management\__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\management\__init__.py", line 377, in execute
    django.setup()
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\apps\registry.py", line 114,
in populate
    app_config.import_models()
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\apps\config.py", line 211, in import_models
    self.models_module = import_module(models_module_name)
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\contrib\auth\models.py", line 2, in <module>
    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\contrib\auth\base_user.py", line 47, in <module>
    class AbstractBaseUser(models.Model):
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\base.py", line 121, in __new__
    new_class.add_to_class('_meta', Options(meta, app_label))
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\base.py", line 325, in add_to_class
    value.contribute_to_class(cls, name)
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\options.py", line 208, in contribute_to_class
    self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\__init__.py", line 28, in
__getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\utils.py", line 207, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\utils.py", line 111, in load_backend
    return import_module('%s.base' % backend_name)
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "Users..\AppData\Local\Programs\Python\Python37-32\lib\site-packages\sql_server\pyodbc\base.py", line 12, in <module>
    raise ImproperlyConfigured("Django %d.%d.%d is not supported." % VERSION[:3])
django.core.exceptions.ImproperlyConfigured: Django 3.0.1 is not supported.

不支持Django 3.0.1是什么意思？

Answer 1

您的问题是由于为新项目安装了不同的版本。您应为每个项目使用不同的虚拟环境，以避免出现此问题。

Answer 2

您使用的sql_server软件包与Django 3.0或更高版本不兼容。从您的问题尚不清楚，您使用的是哪个sql_server软件包（是否为django-pyodbc？），但是大多数软件包尚未添加对Django 3.0的支持。

使用与您的django-pyodbc软件包兼容的Django版本（请咨询该软件包的文档，可能您应该使用Django 2.1或2.2）或派生该软件包并对其进行修改以支持Django 3.0。

Answer 3

能否请您使用python3.7.3创建virtualenv，然后在virtualenv中安装Django3。因为Django3仅支持Pyth on3.6及更高版本。也许存在一些python版本兼容性问题。对于python版本更改，请点击此链接.. https://unix.stackexchange.com/questions/410579/change-the-python3-default-version-in-ubuntu

django.core.exceptions.ImproperlyConfigured：不支持Django 3.0.1

3 个答案: