Importing and exporting data with included admin integration.
django-import-export is a Django application and library for importing and exporting data with included admin integration.
Features:
class BookResource(resources.ModelResource):
class Meta:
model = Book
widgets = {
'published': {'format': '%d.%m.%Y'},
}

Source code and example app are available on GitHub:
https://github.com/bmihelac/django-import-export
Documentation:
https://django-import-export.readthedocs.org/en/latest/
django-import-export is currently beta software.