python - OperationalError(2001，“无法创建UNIX套接字(-1)”) - Google App Engine上的Django

我猜这是一个相当简单的问题，但是我很难把我的django项目放到gae上。不访问我的云sql数据库的页面工作正常，但是每当我试图访问引用该数据库的页面时，我会得到
OperationalError (2001, "Can't create UNIX socket (-1)")
所有其他问题似乎都有第24个或第12个错误，这似乎是不同的问题。
下面是一些相关的代码片段：

# settings.py
DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'INSTANCE': '******:webapp',
        'NAME': 'web_db',
        'USER': 'root',
    }
}

# views.py
def createUUID(request):
    id = UUID.create(uuid.uuid4())
    id.save()   # Error happens here
    return HttpResponse(id.uuid)

例外的全文：

OperationalError at /register/

(2001, "Can't create UNIX socket (-1)")

Request Method:     GET
Request URL:    http://*****.appspot.com/register/
Django Version:     1.5.4
Exception Type:     OperationalError
Exception Value:

(2001, "Can't create UNIX socket (-1)")

Exception Location:     /base/data/home/runtimes/python27/python27_lib/versions/third_party/MySQLdb-1.2.4b4/MySQLdb/connections.py in __init__, line 190
Python Executable:  /base/data/home/runtimes/python27/python27_dist/python
Python Version:     2.7.5
Python Path:

['/base/data/home/apps/s~******/1.371736483116355711',
 '/base/data/home/runtimes/python27/python27_dist/lib/python27.zip',
 '/base/data/home/runtimes/python27/python27_dist/lib/python2.7',
 '/base/data/home/runtimes/python27/python27_dist/lib/python2.7/plat-linux2',
 '/base/data/home/runtimes/python27/python27_dist/lib/python2.7/lib-tk',
 '/base/data/home/runtimes/python27/python27_dist/lib/python2.7/lib-old',
 '/base/data/home/runtimes/python27/python27_dist/lib/python2.7/lib-dynload',
 '/base/data/home/runtimes/python27/python27_dist/lib/python2.7/site-packages',
 '/base/data/home/runtimes/python27/python27_lib/versions/1',
 '/base/data/home/runtimes/python27/python27_lib/versions/third_party/MySQLdb-1.2.4b4',
 '/base/data/home/runtimes/python27/python27_lib/versions/third_party/django-1.5',
 '/base/data/home/runtimes/python27/python27_lib/versions/third_party/protorpc-1.0',
 '/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.3',
 '/base/data/home/runtimes/python27/python27_lib/versions/third_party/webob-1.1.1',
 '/base/data/home/runtimes/python27/python27_lib/versions/third_party/yaml-3.10',
 u'/base/data/home/apps/s~*****/1.371736483116355711/..']

Server time:    Tue, 19 Nov 2013 07:30:30 +0000

有什么见解吗？

最佳答案

高石的正确答案！
将主机设置更改为-'host'：'/cloudsql/your project id:your instance name'

   DATABASES = {
    'default': {
            'ENGINE':'django.db.backends.mysql',
            'HOST':'/cloudsql/your-project-id:your-instance-name',
            'NAME': 'db_name',
            'USER': 'root',
            'PASSWORD': '********',
}

被困在这里两天了！谢谢您！