Python模块之pymongo使用

1. 安装

pip install pymongo

2. 快速示例

import pymongo

Pymongo基本介绍

连接到MongoDB

数据库(Databases)与集合(Collections)

文档(Documents)

Pymongo CRUD

Pymongo新增文档

Pymongo文档更新

Pymongo文档删除

Pymongo文档常用查询

1. find
2. count
3. etc.

$or 查询

find({"$or":[{"name":"test"},{"age":{"$gt":25}}]})

You can do with regex which does not contain word. Also you can use $options => i for case insensitive search

Doesn't Contains string

db.collection.find({name:{'$regex' : '^((?!string).)*$', '$options' : 'i'}})

Exact case insensitive string

db.collection.find({name:{'$regex' : '^string$', '$options' : 'i'}})

Start with string

db.collection.find({name:{'$regex' : '^string', '$options' : 'i'}})

End with string

db.collection.find({name:{'$regex' : 'string$', '$options' : 'i'}})

Contains string

db.collection.find({name:{'$regex' : 'string', '$options' : 'i'}})

Using re

You need to compile the regex with the re module:

import re
rgx = re.compile('.*IP.*', re.IGNORECASE)  # compile the regex
cursor = db.tweets.find({'text':rgx},{'text':1,'created_at':1})

You can use re.IGNORECASE as flag if you want to match iP, Ip and ip as well. If you do not want that, you can drop the re.IGNORECASE part.