Updating Django - error: 'No module named migration'

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.

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

Just reinstall the django version or upgrade the version. This solves my problem.

pip install --upgrade django==1.11.18

Then makemigrations

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.