redis 连接实例是线程安全的，可以直接将redis连接实例设置为一个全局变量，直接使用.

pip install redis

import redis

r = redis.Redis(host='localhost',port=6379,password='', db=0)
r.set('guo','shuai')
True
r.get('guo')
'shuai'
r['guo']
'shuai'
r.keys()
['guo']
r.dbsize() #当前数据库包含多少条数据
1L
r.delete('guo')
1
r.save() #执行“检查点”操作，将数据写回磁盘。保存时阻塞
True
r.get('guo');
r.flushdb() #清空r中的所有数据
True

让redis 运行在python的django程序中

准备安装包
pip install django-redis-sessions

在setting的配置,增加session配置

SESSION_ENGINE = 'redis_sessions.session'
SESSION_REDIS_HOST = 'localhost'
SESSION_REDIS_PORT = 6379
SESSION_REDIS_DB = 4
SESSION_REDIS_PASSWORD = ''
SESSION_REDIS_PREFIX = 'session'

url 配置:

url(r'^set_session/', views.set_session),
url(r'^get_session/', views.get_session),

views 配置代码

def set_session(request):
""""保存session数据"""
request.session['username'] = 'Django'
request.session['password'] = '123456'
return HttpResponse('保存session数据成功')

def get_session(request):
"""获取session数据"""
username = request.session.get('username')
password = request.session.get('password')
text = 'username=%s, password=%s' % (username, password)
return HttpResponse(text)