from django.shortcuts import render
from django.http import StreamingHttpResponse
# Create your views here.

def index(request):
    return render(request, 'index.html')

def upload(request):
    res = StreamingHttpResponse(open('/home/ouzijun/ouzijun/Django_postgresSQL/django_p

from functools import wraps

def ex(get_response):
    @wraps(get_response)
    def inner(request):
        try:
            print('wraps-request')
            response = get_response(request)
        except 

class A:
    def __getattr__(self, name):
        print('getting')
        raise AttributeError

o = A()
print(o.test)

class A:
    def __init__(self):
        self.data = 'abc'
        self.counter = 0

    def 

class M(type):
    def __new__(cls)

class A:
    def __new__(cls, x):
        print('__new__')
        return super().__new__(cls)

    def __init__(self, x):
        self.x = x
        print('__init__')
 o = A(1)

for middleware_path in reversed(settings.MIDDLEWARE):

if hasattr(mw_instance, "process_view"):
    # 1. 中间件存在方法proce

 通过使用app.task（）装饰器，您可以轻松地从任何可调用的对象创建任务： 
from .models import User

@app.task
def create_user(username, password):
    User.objects.create(username=username, password=password)

 还可以为任务设置许多选项，这些选项可以指定为装饰器的参数：
 @app.task(serializer='json')
def create_user(username, passw