+
−# Getting the normal admin routines, classes, and `site` instance.
+
−from django.contrib.admin import autodiscover, site, StackedInline, TabularInline, HORIZONTAL, VERTICAL
+
−
+
−# Geographic admin options classes and widgets.
+
−from django.contrib.gis.admin.options import GeoModelAdmin
+
−from django.contrib.gis.admin.widgets import OpenLayersWidget
+
−
+
−try:
+
−    from django.contrib.gis.admin.options import OSMGeoAdmin
+
−    HAS_OSM = True
+
−except ImportError:
+
−    HAS_OSM = False