使用Django和mysql连接器python的Attributeerror
我在django数据库中使用SQLite,我想在我的Synology NAS中使用MariaDb 我在Python 3.9.0+和MariaDB 10.3.24上使用Django 3.2 我使用pip包mysql连接器python==8.0.23作为mysql连接器使用Django和mysql连接器python的Attributeerror,python,mysql,django,mariadb,mysql-connector-python,Python,Mysql,Django,Mariadb,Mysql Connector Python,我在django数据库中使用SQLite,我想在我的Synology NAS中使用MariaDb 我在Python 3.9.0+和MariaDB 10.3.24上使用Django 3.2 我使用pip包mysql连接器python==8.0.23作为mysql连接器 DATABASES = { 'default': { 'ENGINE': 'mysql.connector.django', 'NAME': 'energyHomeWeb_django',
DATABASES = {
'default': {
'ENGINE': 'mysql.connector.django',
'NAME': 'energyHomeWeb_django',
'USER': 'energyHomeWeb',
'PASSWORD': 'password',
'HOST': '192.168.1.123',
'PORT': '3307',
'OPTIONS': {
'autocommit': True,
},
}
}
当我想启动或迁移我的服务器时,出现以下错误:
Exception in thread django-main-thread:
Traceback (most recent call last):
File "/usr/lib/python3.9/threading.py", line 950, in _bootstrap_inner
self.run()
File "/usr/lib/python3.9/threading.py", line 888, in run
self._target(*self._args, **self._kwargs)
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/utils/autoreload.py", line 64, in wrapper
fn(*args, **kwargs)
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/core/management/commands/runserver.py", line 121, in inner_run
self.check_migrations()
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/core/management/base.py", line 486, in check_migrations
executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/db/migrations/executor.py", line 18, in __init__
self.loader = MigrationLoader(self.connection)
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/db/migrations/loader.py", line 53, in __init__
self.build_graph()
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/db/migrations/loader.py", line 220, in build_graph
self.applied_migrations = recorder.applied_migrations()
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/db/migrations/recorder.py", line 77, in applied_migrations
if self.has_table():
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/db/migrations/recorder.py", line 55, in has_table
with self.connection.cursor() as cursor:
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/db/backends/base/base.py", line 259, in cursor
return self._cursor()
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/db/backends/base/base.py", line 235, in _cursor
self.ensure_connection()
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/db/backends/base/base.py", line 219, in ensure_connection
self.connect()
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/db/backends/base/base.py", line 202, in connect
self.init_connection_state()
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/mysql/connector/django/base.py", line 341, in init_connection_state
if self.features.is_sql_auto_is_null_enabled:
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/utils/functional.py", line 48, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/django/db/backends/mysql/features.py", line 150, in is_sql_auto_is_null_enabled
return self.connection.mysql_server_data['sql_auto_is_null']
File "/home/iomys/.virtualenvs/energyHomeWeb/lib/python3.9/site-packages/mysql/connector/django/base.py", line 290, in __getattr__
raise AttributeError
AttributeError
我怎样才能解决这个问题
PS:我不使用mysqlclient,因为它在我的virtualenv上无法工作,而且我找不到如何使其工作。引擎不正确
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'energyHomeWeb_django',
'USER': 'energyHomeWeb',
'PASSWORD': 'password',
'HOST': '192.168.1.123',
'PORT': '3307',
'OPTIONS': {
'autocommit': True,
},
}
}
最后,我将Python的版本更改为Python 3.8,mysqlclient可以很好地使用Python 3.8 所以我使用了它,它现在可以工作了,但是使用这个配置:
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'energyHomeWeb_django',
'USER': 'energyHomeWeb',
'PASSWORD': 'password',
'HOST': '192.168.1.123',
'PORT': '3307',
'OPTIONS': {
'autocommit': True,
},
}
}
我也犯了同样的错误
pip冻结输出
asgiref==3.3.4
asttokens==2.0.4
colorama==0.4.4
Django==3.2
dnspython==1.16.0
executing==0.6.0
icecream==2.1.0
mysql-connector-python==8.0.23
protobuf==3.15.8
Pygments==2.8.1
pytz==2021.1
six==1.15.0
sqlparse==0.4.1
在阅读了源代码之后,我通过对文件venv/lib/python3.8/site packages/mysql/connector/django/base.py进行一点小改动来解决这个问题(假设您使用的是venv,并将您的虚拟环境命名为venv)
升级到8.0.24版对我来说不是一个选项,因为它会生成另一个错误。我没有使用mysqlclient,而是使用mysql连接器pythonThanks作为您的输入!我没有测试您的解决方案,因为现在我的配置正常。
def __getattr__(self, attr):
if attr.startswith("mysql_is"):
return False
raise AttributeError
# copied from venv/lib/python3.8/site-packages/django/db/backends/mysql/base.py
# and modified to use with self.cursor() as cursor: (see init_connection_state() )
@cached_property
def mysql_server_data(self):
with self.cursor() as cursor:
# Select some server variables and test if the time zone
# definitions are installed. CONVERT_TZ returns NULL if 'UTC'
# timezone isn't loaded into the mysql.time_zone table.
cursor.execute("""
SELECT VERSION(),
@@sql_mode,
@@default_storage_engine,
@@sql_auto_is_null,
@@lower_case_table_names,
CONVERT_TZ('2001-01-01 01:00:00', 'UTC', 'UTC') IS NOT NULL
""")
row = cursor.fetchone()
return {
'version': row[0],
'sql_mode': row[1],
'default_storage_engine': row[2],
'sql_auto_is_null': bool(row[3]),
'lower_case_table_names': bool(row[4]),
'has_zoneinfo_database': bool(row[5]),
}