from django.x import xxxx

(newblog-ES3JapFS) E:\PycharmProjects\mywebsite>pip install django_extensions

INSTALLED_APPS = ['django.contrib.admin','django.contrib.auth','django.contrib.contenttypes','django.contrib.sessions','django.contrib.messages','django.contrib.staticfiles',   'django_extensions',]

(newblog-ES3JapFS) E:\PycharmProjects\mywebsite>python manage.py shell_plus
# Shell Plus Model Imports
from django.contrib.admin.models import LogEntry
from django.contrib.auth.models import Group, Permission
from django.contrib.contenttypes.models import ContentType
from django.contrib.sessions.models import Session
from myweb.models import Ad, Article, Category, Comment, Links, Tag, User
# Shell Plus Django Imports
from django.core.cache import cache
from django.conf import settings
from django.contrib.auth import get_user_model
from django.db import transaction
from django.db.models import Avg, Case, Count, F, Max, Min, Prefetch, Q, Sum, When, Exists, OuterRef, Subquery
from django.utils import timezone
from django.urls import reverse
Python 3.6.6 (v3.6.6:4cf1f54eb7, Jun 27 2018, 03:37:03) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>>

>>> from django.core.cache import caches
>>> cache['default']
Traceback (most recent call last):File "<console>", line 1, in <module>
TypeError: 'DefaultCacheProxy' object is not subscriptable
>>> caches['default']
<django.core.cache.backends.locmem.LocMemCache object at 0x00000186B3102B00>
>>> from django.core.cache import cache
>>> cache.get('test')
>>> cache.set('mykey','hello',30)
>>> cache.get('mykey')
'hello'
>>> cache.get('mykey')
'hello'
>>> cache.get('mykey')
'hello'
# 30s之后缓存结束了，已经得不到返回值。
>>> cache.get('mykey')
>>> cache.get('mykey')