我一直在Python2.5上用syncdb构建数据库的时间很困难。 我认为这个问题的一些是因为使用通配符*来导入forum.models它似乎在创建一个循环。有人可以帮助澄清我对syncdb和导入循环的困惑,'你必须明确进口吗?'
>>> import settings
>>> from forum.managers import QuestionManager, TagManager, AnswerManager, VoteManager, FlaggedItemManager, ReputeManager, AwardManager
Traceback (most recent call last):
File "<console>", line 1, in <module>
File "/home/username/webapps/username/sousvide_app/forum/managers.py", line 6, in <module>
from forum.models import *
File "/home/username/webapps/username/sousvide_app/forum/models.py", line 18, in <module>
from forum.managers import QuestionManager, TagManager, AnswerManager, VoteManager, FlaggedItemManager, ReputeManager, AwardManager
ImportError: cannot import name QuestionManager
>>> from forum.models import Question, Tag
>>> from forum.managers import QuestionManager, TagManager, AnswerManager, VoteManager, FlaggedItemManager, ReputeManager, AwardManager
>>> import sys, pprint
>>> pprint.pprint(sys.path)
['/home/username/webapps/username/sousvide_app',
'/home/username/webapps/username/lib/python2.5',
'/home/username/lib/python2.5/markdown2-1.0.1.16-py2.5.egg',
'/home/username/lib/python2.5/html5lib-0.11.1-py2.5.egg',
'/home/username/lib/python2.5',
'/usr/local/lib/python25.zip',
'/usr/local/lib/python2.5',
'/usr/local/lib/python2.5/plat-linux2',
'/usr/local/lib/python2.5/lib-tk',
'/usr/local/lib/python2.5/lib-dynload',
'/usr/local/lib/python2.5/site-packages',
'/usr/local/lib/python2.5/site-packages/PIL']
>>> from settings import INSTALLED_APPS
>>> pprint.pprint(INSTALLED_APPS)
('sousvide_app.forum',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.admin',
'django.contrib.humanize',
'django_authopenid')
我对另一个同样的问题安装,我是能够通过明确从forum.managers导入经理来解决。
正如你所看到的,如果我将问题和标签模型加载到命名空间中,我可以在shell中导入管理器。
我做出了从forum.models导入*明确:
从forum.models导入问题,标签
不过,我仍然无法执行syncdb。当我尝试输出SQL时,找不到APP。
$ python2.5 manage.py sql论坛
错误:无法找到带有标签论坛的应用程序。你确定你的INSTALLED_APPS设置是正确的吗?
任何人都可以给我一个想法是什么问题?
是否有可能导致此错误的Python2.5?
我突然发生同样的错误。哼。 – jMyles 2011-02-03 02:22:31