Backup DB Django MysqlDump - mysql

Question

Good afternoon, I have an application in Django 1.10 where I need to create a backup of the bd, this copy should be made when the user clicks on a button that will be placed in a template and will download the copy in the Team of the user.
In my views.py I have the following.
def backup(request):
subprocess.Popen("mysqldump -u root -p12345 victimas > /home/proyecto/backup.sql")
subprocess.Popen("gzip -c /home/proyecto/backup.sql > /home/proyecto/backup.gz")
dataf = open('/home/proyecto/backups/backup.gz', 'r')
return HttpResponse(dataf.read(), mimetype='application/x-gzip')
But I get the error
[Errno 2] No such file or directory: django mysqldump
Doing this directly from the console creates the file for me, and check the permissions of the folder.
I appreciate your collaboration

Answer 1

As per the Popen documentation, Popen takes a list of arguments. If you pass it a string, it will be treated as the command name - the entire string will be treated as the command, not as a command with arguments.
Split the string argument using:
import shlex
command_line = "mysqldump -u root -p12345 victimas > /home/proyecto/backup.sql"
args = shlex.split(command_line)
subprocess.Popen(args)

Answer 2

I resolved this:
In the Django settings file add:
RUTA = '/path/to_tmp/file/'
In the views.py
import subprocess, gzip
from subprocess import Popen
from victimas.settings import DATABASES, RUTA
def backup(request):
name = DATABASES['default']['NAME']
passwd = DATABASES['default']['PASSWORD']
user = DATABASES['default']['USER']
ruta = RUTA
proc = subprocess.Popen("mysqldump -u "+user+" -p"+passwd+" "+name+" > "+ruta+"backup.sql", shell=True)
proc.wait()
procs = subprocess.Popen("tar -czvf "+ruta+"backup.tar.tgz "+ruta+"backup.sql", shell=True, )
procs.wait()
fs = FileSystemStorage(ruta)
with fs.open('backup.tar.tgz') as tar:
response = HttpResponse(tar, content_type='application/x-gzip')
response['Content-Disposition'] = 'filename="backup.tar.tgz"'
return response