I'm upgrading my Django App from Django 1.5.5 tot 1.9, Django-cms from 2.4.3 to 3.3 (and all corresponding packages).
After I've plowed through all the errors of depreciated functions I now stumble on an error that I cannot understand: 'No module named migration'
I get this error when running (in a virtualenv): - python manage.py runserver and also when I run - python manage.py migrate
Traceback (most recent call last):
File "manage.py", line 20, in <module>
execute_from_command_line(sys.argv)
File "/var/www/env/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 350, in execute_from_command_line
utility.execute()
File "/var/www/env/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 342, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/var/www/env/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 195, in fetch_command
klass = load_command_class(app_name, subcommand)
File "/var/www/env/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 39, in load_command_class
module = import_module('%s.management.commands.%s' % (app_name, name))
File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
File "/var/www/env/local/lib/python2.7/site-packages/django/core/management/commands/migrate.py", line 16, in <module>
from django.db.migrations.autodetector import MigrationAutodetector
File "/var/www/env/local/lib/python2.7/site-packages/django/db/migrations/__init__.py", line 1, in <module>
from .migration import Migration, swappable_dependency # NOQA
ImportError: No module named migration
manage.py
#!/usr/bin/env python2
import os
import sys
if __name__ == "__main__":
settings_module_path = 'ais.settings.production'
########## Attempt to override settings using local settings
try:
from ais.settings.local_settings import *
# For developmentent, file will probably hold the following:
settings_module_path = 'ais.settings.development'
print "!!!manage.py settings overwritten!!!"
except ImportError:
pass
os.environ['DJANGO_SETTINGS_MODULE'] = settings_module_path
from django.core.management import execute_from_command_line
execute_from_command_line(sys.argv)
migrate.sh
#!/bin/sh
echo "Starting ..."
echo ">> Deleting old migrations"
find . -path "*/migrations/*.py" -not -name "__init__.py" -delete
find . -path "*/migrations/*.pyc" -delete
# Optional
echo ">> Deleting sqlite (if exists) database"
find . -name "db.sqlite3" -delete
echo ">> Running manage.py makemigrations"
python manage.py makemigrations
echo ">> Running manage.py migrate"
python manage.py migrate
echo ">> Done"
If your error still like :
from .migration import Migration, swappable_dependency # NOQA
ImportError: No module named 'django.db.migrations.migration'
You need to reinstall dajngo
Check You Django version and then Force Reinstall it
python -m django --version
pip install --upgrade --force-reinstall package
pip install --upgrade --force-reinstall Django==2.0.5
Your script appears to be the problem. It is trying to delete your migrations, but it's actually also deleting the contents of Django's /django/db/migrations/ file as well. Note that it explicitly doesn't delete the __init__.py file but it does delete the others.
One option is just to remove these lines:
echo ">> Deleting old migrations"
find . -path "*/migrations/*.py" -not -name "__init__.py" -delete
find . -path "*/migrations/*.pyc" -delete
You shouldn't be deleting old migrations anyway once you're running Django on production because you might want to add custom code to a migration. This looks like a convenience script for development.
As @YPCrumble pointed out, your ">> Deleting old migrations" script deleted /django/db/migrations/ file as well. To restore it back, you need to uninstall Django and reinstall it.