Move django from SQLite to MySQL

gistfile1.txt

When you start develop new site, you may run from little one with tiny database.
For django best start from sqlite and after some time, if you project begin grow you move to more serious database engine (MySQL, Postgre SQL etc).
Sadly, django does not have any ready tools to move from one to another database.
You may try

python ./manage.py dumpdata > data.json

and

python ./manage.py loaddata data.json

but unfortunately this doesn't work because of integrity errors...or many other issues

For move from one db to another i follow steps:
Edit settings.py 
add new database in DATABASES settings with 'slave' name like:
DATABASES = {'default': {...}, 'slave': {...}}
if you use apps like south - comment them for a while
Create new db (django create only new file for sqlite database type)
Create tables in new db
python ./manage.py syncdb --database slave
enable south and repeat 3.1
Create file to_slave.py in main project directory:
from django.contrib.contenttypes.models import ContentType

def run():

 def do(Table):
  if Table is not None:
   table_objects = Table.objects.all()
   for i in table_objects:
    i.save(using='slave')
 
 ContentType.objects.using('slave').all().delete()

 for i in ContentType.objects.all():
  do(i.model_class())
If you have any kind of signals for you models - disable them before next step
run 
python ./manage.py shell and type command in shell
from to_slave import run
run()
Make 'slave' default database in you project
Done

This was extremely helpful. However, I had to make one modification for this to work.
If your tables have foreign key constraints they must be turned off before you can run the import script.
So, you list should have

run mysql as root
SET GLOBAL FOREIGN_KEY_CHECKS=0;

before running script.

run mysql as root
SET GLOBAL FOREIGN_KEY_CHECKS=1;

after running script.