AttributeError: 'module' object has no attribute 'Business'

This is the /app03/views.py:

from django.db import models

def business(request):
    v = models.Business.objects.all()   # this is the line10
    # QuerySet
    # [obj(id, caption, code), obj,obj...]
    return render(request, '/app03/business.html', {'v':v})

This is the traceback information in my PyCharm CE:

Traceback (most recent call last):
  File "/Library/Python/2.7/site-packages/Django-1.11.2-py2.7.egg/django/core/handlers/exception.py", line 41, in inner
    response = get_response(request)
  File "/Library/Python/2.7/site-packages/Django-1.11.2-py2.7.egg/django/core/handlers/base.py", line 187, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/Library/Python/2.7/site-packages/Django-1.11.2-py2.7.egg/django/core/handlers/base.py", line 185, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/Users/luowensheng/Desktop/TestIOS/TestPython/pyProject/app03/views.py", line 10, in business
    v = models.Business.objects.all()
AttributeError: 'module' object has no attribute 'Business'
[14/Aug/2017 09:27:27] "GET /app03/business/ HTTP/1.1" 500 64817

In my /app03/models.py:

class Business(models.Model):
    caption = models.CharField(max_length=32)
    code = models.CharField(max_length=32, default='SA')

and, I have done this operation:

python manage.py makemigrations
python manage.py migrate 

and in the db.sqlite3, have generated the app03_business table:

Why there is no attribute 'Business'?

You should import the class from your app model directly. You're currently in conflict with Django's models module, which has has the same name models with that in your app:

from django.db import models
from app03.models import Business

def business(request):
    v = Business.objects.all()   # this is the line10
    # QuerySet
    # [obj(id, caption, code), obj,obj...]
    return render(request, '/app03/business.html', {'v':v})