An example how to connect userena with social auth (django-social-auth).

pipeline.py

from userena.models import  UserenaSignup

from userena.utils import generate_sha1, get_profile_model, get_datetime_now, \
    get_user_model, get_user_profile
from guardian.shortcuts import assign_perm, get_perms

ASSIGNED_PERMISSIONS = {
    'profile':
        (('view_profile', 'Can view profile'),
         ('change_profile', 'Can change profile'),
         ('delete_profile', 'Can delete profile')),
    'user':
        (('change_user', 'Can change user'),
         ('delete_user', 'Can delete user'))
}

def load_data_new_user(backend, response, user, is_new=False, *args, **kwargs):
    if is_new:
        UserenaSignup.objects.get_or_create(user=user)
        # Give permissions to view and change profile
        for perm in ASSIGNED_PERMISSIONS['profile']:
            assign_perm(perm[0], user, get_user_profile(user=user))

    # Give permissions to view and change itself
        for perm in ASSIGNED_PERMISSIONS['user']:
            assign_perm(perm[0], user, user)
    return {}

settings.py

SOCIAL_AUTH_PIPELINE = (
    'social_auth.backends.pipeline.social.social_auth_user',
    #'social_auth.backends.pipeline.associate.associate_by_email',
    'social_auth.backends.pipeline.user.get_username',

    'social_auth.backends.pipeline.user.create_user',
    'social_auth.backends.pipeline.social.associate_user',
    'customers.pipeline.load_data_new_user',
    'social_auth.backends.pipeline.social.load_extra_data',
    'social_auth.backends.pipeline.user.update_user_details',

)

I didn't found examples how to connect social auth with userena, so here it is my way to implement it.