Django - Shifting from SQLite3 to PostGres

migrate-django.md

How to migrate Django from SQLite to PostgreSQL

Dump existing data:

python3 manage.py dumpdata > datadump.json

Change settings.py to Postgres backend.

Make sure you can connect on PostgreSQL. Then:

python3 manage.py migrate --run-syncdb

Run this on Django shell to exclude contentype data

python3 manage.py shell

>>> from django.contrib.contenttypes.models import ContentType
>>> ContentType.objects.all().delete()
>>> quit()

Finally:

python3 manage.py loaddata datadump.json

Source: https://stackoverflow.com/questions/3034910/whats-the-best-way-to-migrate-a-django-db-from-sqlite-to-mysql