下载驱动包：

      https://pypi.org/project/pymongo/

tar zxvf pymongo-3.8.0.tar.gz   安装：  python setup.py install

测试python环境中与monogdb的交互。

from pymongo import MongoClient
client = MongoClient("localhost",40000)
db=client.test

for i in xrange(2000000):
  val=dict(val=str(i))
  db.yql.insert(val)