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