django1/django/contrib/gis/geometry/backend/__init__.py

23 lines
767 B
Python

from importlib import import_module
from django.conf import settings
from django.core.exceptions import ImproperlyConfigured
geom_backend = getattr(settings, 'GEOMETRY_BACKEND', 'geos')
try:
module = import_module('django.contrib.gis.geometry.backend.%s' % geom_backend)
except ImportError:
try:
module = import_module(geom_backend)
except ImportError:
raise ImproperlyConfigured('Could not import user-defined GEOMETRY_BACKEND '
'"%s".' % geom_backend)
try:
Geometry = module.Geometry
GeometryException = module.GeometryException
except AttributeError:
raise ImproperlyConfigured('Cannot import Geometry from the "%s" '
'geometry backend.' % geom_backend)