how to take backup of mysql database using python

1#!/usr/bin/python
2 
3###########################################################
4#
5# This python script is used for mysql database backup
6# using mysqldump and tar utility.
7#
8# Written by : Rahul Kumar
9# Website: http://tecadmin.net
10# Created date: Dec 03, 2013
11# Last modified: Aug 17, 2018 
12# Tested with : Python 2.7.15 & Python 3.5
13# Script Revision: 1.4
14#
15##########################################################
16 
17# Import required python libraries
18 
19import os
20import time
21import datetime
22import pipes
23 
24# MySQL database details to which backup to be done. Make sure below user having enough privileges to take databases backup.
25# To take multiple databases backup, create any file like /backup/dbnames.txt and put databases names one on each line and assigned to DB_NAME variable.
26 
27DB_HOST = 'localhost' 
28DB_USER = 'root'
29DB_USER_PASSWORD = '_mysql_user_password_'
30#DB_NAME = '/backup/dbnameslist.txt'
31DB_NAME = 'db_name_to_backup'
32BACKUP_PATH = '/backup/dbbackup'
33 
34# Getting current DateTime to create the separate backup folder like "20180817-123433".
35DATETIME = time.strftime('%Y%m%d-%H%M%S')
36TODAYBACKUPPATH = BACKUP_PATH + '/' + DATETIME
37 
38# Checking if backup folder already exists or not. If not exists will create it.
39try:
40    os.stat(TODAYBACKUPPATH)
41except:
42    os.mkdir(TODAYBACKUPPATH)
43 
44# Code for checking if you want to take single database backup or assinged multiple backups in DB_NAME.
45print ("checking for databases names file.")
46if os.path.exists(DB_NAME):
47    file1 = open(DB_NAME)
48    multi = 1
49    print ("Databases file found...")
50    print ("Starting backup of all dbs listed in file " + DB_NAME)
51else:
52    print ("Databases file not found...")
53    print ("Starting backup of database " + DB_NAME)
54    multi = 0
55 
56# Starting actual database backup process.
57if multi:
58   in_file = open(DB_NAME,"r")
59   flength = len(in_file.readlines())
60   in_file.close()
61   p = 1
62   dbfile = open(DB_NAME,"r")
63 
64   while p <= flength:
65       db = dbfile.readline()   # reading database name from file
66       db = db[:-1]         # deletes extra line
67       dumpcmd = "mysqldump -h " + DB_HOST + " -u " + DB_USER + " -p" + DB_USER_PASSWORD + " " + db + " > " + pipes.quote(TODAYBACKUPPATH) + "/" + db + ".sql"
68       os.system(dumpcmd)
69       gzipcmd = "gzip " + pipes.quote(TODAYBACKUPPATH) + "/" + db + ".sql"
70       os.system(gzipcmd)
71       p = p + 1
72   dbfile.close()
73else:
74   db = DB_NAME
75   dumpcmd = "mysqldump -h " + DB_HOST + " -u " + DB_USER + " -p" + DB_USER_PASSWORD + " " + db + " > " + pipes.quote(TODAYBACKUPPATH) + "/" + db + ".sql"
76   os.system(dumpcmd)
77   gzipcmd = "gzip " + pipes.quote(TODAYBACKUPPATH) + "/" + db + ".sql"
78   os.system(gzipcmd)
79 
80print ("")
81print ("Backup script completed")
82print ("Your backups have been created in '" + TODAYBACKUPPATH + "' directory")
83