Django user get_all_permissions() is empty while user_permissions is set
had the same problem. I am guessing that at some point you have used a self-crafted AUTHENTICATION_BACKEND? Most examples on the net of this (INCLUDING THE DJANGO 1.0 DOCUMENTATION!) don't mention that the Backends are responsible for permissions handling as well.
However, no biggie: In whatever backend file your code resides, include this import:
from django.contrib.auth.backends import ModelBackendThen make sure the Backend you wrote extends ModelBackend, e.g.:
class EmailBackend(ModelBackend):Should be fine.