MongoDB interacts with Python

1.Pymongo

Pymongo is the Python interface development package for MongoDB and is the recommended way to use Python and MongoDB.
Official documents

2. Installation

Go to Virtual Environment sudo pip install Pymongo or source installation python setup.py

3. Use

Import Module

Import Pymongo # or  from Import Mongoclient

Connections Built on Mongoclient:

Client = mongoclient ('localhost', 27017#client = mongoclient ( ' mongodb://localhost:27017/ ')

Get the database

db = client.test_database#  or db = client['test-database' ]

Get a collection of data

Collection = db.test_collection#collection = db['test-collection' ]

4. Complete the Command line project: Student Information Management (based on Python2.7)

Code manipulation

#-*-coding:utf-8-*-ImportPymongodefsystem ():Print('you will enter the database management system, the data priceless, careful operation! ◆')    Print('◇ 1: View data ◇')    Print('◇ 2: Increase data ◇')    Print('◇ 3: Modify Data ◇')    Print('◇ 4: Delete data ◇')    Print('◇ 5: Search Data ◇')    Print('6: Exit the database management system')    #establish a connection to MongoDBClient = Pymongo. Mongoclient ('localhost', 27017)    #Get the databaseStu = client['Stu']    #get a collection of datamessage = stu['message']     whileTrue:order= Int (Raw_input ('Please enter the relevant instructions:'))        ifOrder==1: Exit=Message.count ()ifexit==0:Print('Sorry, there is currently no data in the database! ')            Else:                 forDatainchmessage.find (): Content= data['name']+data[' Age']+data['Sex']                    Print(content)elifOrder ==2: Name= Raw_input ('Please enter student's name:') Age= Raw_input ('Please enter student's age:') Sex= Raw_input ('Please enter student gender (male/female):') Data= {                'name': Name,' Age': Age,'Sex': Sex,} message.insert_one (data)Print('Add success! ')        elifOrder = = 3: Name= Raw_input ('Please enter the name of the student to be modified:') Exit= Message.count ({'name': Name}) ifExit! =0:age= Raw_input ('Please enter the age of the modified student:') message.update ({'name': name},{'$set':{' Age': Age}}) Print('Modification succeeded')            Else:                Print 'Sorry, there is no information for this student in the database! '        elifOrder = = 4: Name= Raw_input ('Please enter the name of the student you want to delete:') Exit= Message.count ({'name': Name}) ifExit! =0:message.remove ({'name': Name}) Print('Delete succeeded')            Else:                Print 'Sorry, there is no information for this student in the database! '        elifOrder = = 5: Name= Raw_input ('Please enter the name of the student to be queried:') Exit= Message.count ({'name': Name}) ifexit!=0:data= Message.find_one ({'name': Name}) Content= data['name']+data[' Age']+data['Sex']                PrintcontentElse:                Print 'Sorry, there is no information for this student in the database! '        elifOrder = = 6:            Print('Thank you for your use! ')             Break        Else:            Print('your input is incorrect, please enter a valid instruction (1/2/3/4/5)')if __name__=='__main__': System ()

Test results

MongoDB interacts with Python