Django: 调用metaclasses基础时出错

这就是一个错误

TypeError: 调用metaclasses基础时出错
元划分的冲突：衍生类的metaclass必须是 /Nestostrogim./ 所有基地的MetaClasses子类

影响我的课程 models.py

class Business/models.Model, forms.Form/:

 name = models.CharField/max_length=128/

 tel_no = models.CharField/max_length=11/

 address_ln1 = models.CharField/max_length=128/

 address_ln2 = models.CharField/max_length=128/

 city = models.CharField/max_length=64/

 county = GBCountySelect//

 postcode = GBPostcodeField//

 website = models.URLField/max_length=128/

# Logging Info

 slug = models.SlugField//

 date_added = models.DateField/auto_now_add=True/

 time_added = models.TimeField//

 added_by_user = models.CharField/max_length=64/

 last_edit_time = models.TimeField/auto_now=True/

 last_edit_date = models.DateField/auto_now=True/

我弄错的行：

name = models.CharField/max_length=128/

但是我 /我认为/, 这是什么意思：

class Business/models.Model, forms.Form/:

我不太明白它意味着如何从我的模型继承 models.Model 和 forms.Form 在一堂课？ 创建课程时，我可以没有传输两个值吗？ 如果是这样，怎么样？

另一个编辑

All my imports

from django.db import models

from django import forms

from django.contrib.localflavor import generic

from django.contrib.localflavor.gb.forms import GBPostcodeField, GBCountySelect

完整结论：

Traceback /most recent call last/:

 File "manage.py", line 10, in <module>

 execute_from_command_line/sys.argv/

 File "/home/jws1000/.virtualenvs/glutenfree/lib/python2.7/site-packages/django/core/management/__init__.py", line 443, in execute_from_command_line

 utility.execute//

 File "/home/jws1000/.virtualenvs/glutenfree/lib/python2.7/site-packages/django/core/management/__init__.py", line 382, in execute

 self.fetch_command/subcommand/.run_from_argv/self.argv/

 File "/home/jws1000/.virtualenvs/glutenfree/lib/python2.7/site-packages/django/core/management/base.py", line 196, in run_from_argv

 self.execute/*args, **options.__dict__/

 File "/home/jws1000/.virtualenvs/glutenfree/lib/python2.7/site-packages/django/core/management/base.py", line 231, in execute

 self.validate//

 File "/home/jws1000/.virtualenvs/glutenfree/lib/python2.7/site-packages/django/core/management/base.py", line 266, in validate

 num_errors = get_validation_errors/s, app/

 File "/home/jws1000/.virtualenvs/glutenfree/lib/python2.7/site-packages/django/core/management/validation.py", line 30, in get_validation_errors

 for /app_name, error/ in get_app_errors//.items//:

 File "/home/jws1000/.virtualenvs/glutenfree/lib/python2.7/site-packages/django/db/models/loading.py", line 158, in get_app_errors

 self._populate//

 File "/home/jws1000/.virtualenvs/glutenfree/lib/python2.7/site-packages/django/db/models/loading.py", line 64, in _populate

 self.load_app/app_name, True/

 File "/home/jws1000/.virtualenvs/glutenfree/lib/python2.7/site-packages/django/db/models/loading.py", line 88, in load_app

 models = import_module/'.models', app_name/

 File "/home/jws1000/.virtualenvs/glutenfree/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module

 __import__/name/

 File "/home/jws1000/envs/glutenfree/glutenfree/glutenfree/listings/models.py", line 9, in <module>

 class Business/models.Model, forms.Form/:

 File "/home/jws1000/.virtualenvs/glutenfree/lib/python2.7/site-packages/django/db/models/base.py", line 41, in __new__

 new_class = super_new/cls, name, bases, {'__module__': module}/

TypeError: Error when calling the metaclass bases

 metaclass conflict: the metaclass of a derived class must be a /non-strict/ subclass of the metaclasses of all its bases

</module></module>