python - Django mysqlclient 后端在 Windows 中产生 django.db.utils.OperationalError : (2059, )

Question

我试图让我的 Django 项目在 Windows 10 计算机上运行，​​但在尝试建立数据库连接时它抛出了一个非常不明确的错误。 In this SO-post the problem was with the authentication , 但在那篇文章中显示了有关错误的详细信息，而不是 <\NULL> ，这几乎没有什么可以继续的。

整个错误如下所示:

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x0000018C3B8761E0>
Traceback (most recent call last):
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\backends\base\base.py", line 216, in ensure_connection
    self.connect()
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\backends\base\base.py", line 194, in connect
    self.connection = self.get_new_connection(conn_params)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\backends\mysql\base.py", line 236, in get_new_connection
    return Database.connect(**conn_params)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\MySQLdb\__init__.py", line 85, in Connect
    return Connection(*args, **kwargs)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\MySQLdb\connections.py", line 204, in __init__
    super(Connection, self).__init__(*args, **kwargs2)
_mysql_exceptions.OperationalError: (2059, <NULL>)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\utils\autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\core\management\commands\runserver.py", line 120, in inner_run
    self.check(display_num_errors=True)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\core\management\base.py", line 364, in check
    include_deployment_checks=include_deployment_checks,
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\core\management\base.py", line 351, in _run_checks
    return checks.run_checks(**kwargs)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\core\checks\registry.py", line 73, in run_checks
    new_errors = check(app_configs=app_configs)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\core\checks\model_checks.py", line 27, in check_all_models
    errors.extend(model.check(**kwargs))
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\models\base.py", line 1200, in check
    errors.extend(cls._check_fields(**kwargs))
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\models\base.py", line 1272, in _check_fields
    errors.extend(field.check(**kwargs))
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\models\fields\__init__.py", line 894, in check
    errors = super().check(**kwargs)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\models\fields\__init__.py", line 206, in check
    errors.extend(self._check_backend_specific_checks(**kwargs))
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\models\fields\__init__.py", line 303, in _check_backend_specific_checks
    return connections[db].validation.check_field(self, **kwargs)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\backends\base\validation.py", line 21, in check_field
    field_type = field.db_type(self.connection)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\models\fields\__init__.py", line 648, in db_type
    return connection.data_types[self.get_internal_type()] % data
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\utils\functional.py", line 36, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\backends\mysql\base.py", line 133, in data_types
    if self.features.supports_microsecond_precision:
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\utils\functional.py", line 36, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\backends\mysql\features.py", line 65, in supports_microsecond_precision
    return self.connection.mysql_version >= (5, 6, 4)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\utils\functional.py", line 36, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\backends\mysql\base.py", line 345, in mysql_version
    with self.temporary_connection() as cursor:
  File "C:\Users\marcu\AppData\Local\Programs\Python\Python36\lib\contextlib.py", line 81, in __enter__
    return next(self.gen)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\backends\base\base.py", line 576, in temporary_connection
    cursor = self.cursor()
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\backends\base\base.py", line 255, in cursor
    return self._cursor()
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\backends\base\base.py", line 232, in _cursor
    self.ensure_connection()
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\backends\base\base.py", line 216, in ensure_connection
    self.connect()
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\utils.py", line 89, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\backends\base\base.py", line 216, in ensure_connection
    self.connect()
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\backends\base\base.py", line 194, in connect
    self.connection = self.get_new_connection(conn_params)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\django\db\backends\mysql\base.py", line 236, in get_new_connection
    return Database.connect(**conn_params)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\MySQLdb\__init__.py", line 85, in Connect
    return Connection(*args, **kwargs)
  File "D:\Program\LiquidMarket\venv\lib\site-packages\MySQLdb\connections.py", line 204, in __init__
    super(Connection, self).__init__(*args, **kwargs2)
django.db.utils.OperationalError: (2059, <NULL>)

使用python 3.6.6和mysqlclient 1.3.13，虽然1.3.12也试过了。

数据库设置:

DATABASES = {
    'default': {
        'ENGINE': "django.db.backends.mysql",  # 'mysql.connector.django'
        'NAME': 'testdb',
        'USER': 'root',
        'PASSWORD': 'password',
        'HOST': 'localhost',
        'PORT': '3306',
        'OPTIONS': {
          'autocommit': True,
        },
    },
}

Answer 1

更改新版mysql的加密方式，因为django不支持新的加密方式