The simplest way is to use a string which represents the breadcrumbs:
from oscar.apps.catalogue.categories import create_from_breadcrumbs
categories = (
'Food > Cheese',
'Food > Meat',
'Clothes > Man > Jackets',
'Clothes > Woman > Skirts',
)
for breadcrumbs in categories:
create_from_breadcrumbs(breadcrumbs)