Question

我正在使用默认django的sqlitedb在prod mariadb数据库上迁移我的应用程序。有python3.3 + centos 7 + django 1.8 + apache envirounment。在sqlite上一切正常，但在迁移之后我在apache重启后出现了这样的错误：

Traceback (most recent call last):
  File "/usr/local/mainproject/mysite/mysite/wsgi.py", line 23, in <module>
  application = get_wsgi_application()
  File "/usr/local/lib/python3.3/site-packages/django/core/wsgi.py", line 14, in get_wsgi_application
django.setup()
  File "/usr/local/lib/python3.3/site-packages/django/__init__.py", line 18, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/usr/local/lib/python3.3/site-packages/django/apps/registry.py", line 108, in populate
app_config.import_models(all_models)
  File "/usr/local/lib/python3.3/site-packages/django/apps/config.py", line 198, in import_models
self.models_module = import_module(models_module_name)
  File "/usr/lib64/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
  File "/usr/local/lib/python3.3/site-packages/django/contrib/auth/models.py", line 41, in <module>
class Permission(models.Model):
  File "/usr/local/lib/python3.3/site-packages/django/db/models/base.py", line 139, in __new__
new_class.add_to_class('_meta', Options(meta, **kwargs))
  File "/usr/local/lib/python3.3/site-packages/django/db/models/base.py", line 324, in add_to_class
value.contribute_to_class(cls, name)
  File "/usr/local/lib/python3.3/site-packages/django/db/models/options.py", line 250, in contribute_to_class
self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
  File "/usr/local/lib/python3.3/site-packages/django/db/__init__.py", line 36, in __getattr__
return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "/usr/local/lib/python3.3/site-packages/django/db/utils.py", line 240, in __getitem__
backend = load_backend(db['ENGINE'])
  File "/usr/local/lib/python3.3/site-packages/django/db/utils.py", line 111, in load_backend
return import_module('%s.base' % backend_name)
  File "/usr/lib64/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
  File "/usr/local/lib/python3.3/site-packages/django/db/backends/mysql/base.py", line 27, in <module>
raise ImproperlyConfigured("Error loading MySQLdb module: %s" % e)
ImproperlyConfigured: Error loading MySQLdb module: No module named _mysql

我已按照此处https://docs.djangoproject.com/en/1.8/ref/databases/#mysql-db-api-drivers安装了mysqlclient。比我已经做了manage.py syncdb并且它已经成功完成。我检查了数据库结构，没关系 - 所有数据都已迁移。但是我的应用开始时仍然存在这样的错误。

解决方案是：使用非官方库https://github.com/nakagami/django-cymysql/使用django轻松安装和配置：

$ pip install cymysql
$ pip install django-cymysql

只需将此引擎添加到django的settings.py：

即可

DATABASES = {
'default': {
    'ENGINE': 'mysql_cymysql',
    'NAME': 'some_what_database',
    'HOST': ...,
    'USER': ...,
    'PASSWORD': ...,
   }
}

Answer 1

试试这个;这解决了我的问题

pip install MySQL-python

Answer 2

在Python3中，我必须向需求添加mysqlclient，MySQL-python不支持Python3。

Django错误：没有名为_mysql的模块

2 个答案: