def length(self, **kwargs):
        return self._distance_attribute('length', None, **kwargs)
Monkey-patch for django 1.5
dataset/ETHPy150Open django/django/django/contrib/gis/db/models/query.py/GeoQuerySet.length--crossover with--dataset/ETHPy150Open Tivix/django-common/django_common/admin.py/__init__