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Python Read/Write Sample

Last updated: 2024-01-15 14:49:55
This document uses Python sample code to demonstrate the basic data read/write operations in a TencentDB for MongoDB sharded cluster. The following sample code is written based on Python 2.7 syntax, and the actual code may vary by version. For more information, see MongoDB Python Drivers.
#!/usr/bin/python
import pymongo
import random


mongodbUri = 'mongodb://mongouser:1234567a@10.66.153.111:27017/admin'

client = pymongo.MongoClient(mongodbUri)
db = client.test

if 'num' in db.collection_names():
db.drop_collection('num')

#create database and shardkey,shardkey is name
db_admin=client.admin
db_admin.command('enableSharding', 'test')
db_admin.command('shardCollection', 'test.num', key = {'name':1})

#insert data
print 'insert docs'
db.num.insert_one({'id':1, 'name':'R9', 'des':'pretty'})
db.num.insert_one({'id':2, 'name':'BOY', 'des':'handsome'})
db.num.insert_one({'id':3, 'name':'cat', 'des':'nice'})
db.num.insert_one({'id':4, 'name':'dog', 'des':'clever'})
print 'list all docs'
for i in db.num.find(): print i

#insert update doc
print 'update R9 and delete BOY'
db.num.update_one({"name":"R9"},{"$set":{"des":"good"}})
db.num.delete_one({"name":"BOY"})
db.num.update_one({"id":3}, {"$set":{"des":"kind"}})

print 'print R9'
for i in db.num.find({"name":"R9"}): print i
print 'list all docs'
for i in db.num.find(): print i
Execution result:


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