pymongo使用總結

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pymongo是操作mongodb的python模組

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# easy_install pymongo

>>>import pymongo

>>> conn = pymongo.mongoclient(host=host,port=port,tz_aware=false)

>>>conn.database_names()[u'

test1
', u'
test2
', u'
admin
', u'
local
']

>>> db = conn.get_database("

db_name
")

>>> db.authenticate('

username
', '
password
')true

>>>db.collection_names()[u'

account
', u'
role
', u'
item
', u'
online
']

>>> account = db.get_collection("

col_name
")

>>> account.find_one()

>>> account.find_one().keys()

>>> for i in account.find

():... print i

>>> account.find().count()

>>> for i in account.find():

... print i

>>> account.find().sort("

name
", pymongo.ascending)
>>> account.find().sort([("
name
", pymongo.ascending), ("
active_time
", pymongo.descending)])

>>> account.insert()

>>> account.update(, })

注：如果資料中沒有鍵-值"
name
": "
mike
"， 會新增"
active_time
": "
20130408120000
"

>>> account.remove()

方法1.

import re
方法2. 

account.find( },  } ] })

#! /usr/bin/env

python
# --*-- coding:utf-8 --*--import pymongo
import re
host="
**.**.**.**
"port=27017
conn  = pymongo.mongoclient(host=host,port=port,tz_aware=false)
db_name = "
test
"log_name = "
col"
db_test =conn.get_database(db_name)
col_col =db_test.get_collection(log_name)
#print 
"db names:
", conn.database_names()
#print 
"col names:
", db_test.collection_names()
#print 
"one_line:
", col_col.find_one()
#print 
"one_line_keys:
", col_col.find_one().keys()
#col_col.insert()
#col_col.update(, })
import  datetime
y,m,d,h,m,s = 2016,2,13,18,30,0
d =datetime.datetime(y,m,d,h,m,s)
delta = datetime.timedelta(hours=8
)d = d-delta
#logs = col_col.find(  } )
#logs = col_col.find(  )
logs = col_col.find( ,  }]} )
c =logs.count()
for l in
logs:
print l
print 
"count:
", c
print 
"end!
"

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