last() Works like first(), but returns the last object in the queryset.

class OSMGeoAdmin A subclass of GeoModelAdmin that uses a spherical mercator projection with OpenStreetMap street data tiles. See the OSMGeoAdmin introduction in the tutorial for a usage example.

GEOSGeometry.unary_union New in Django 1.10. Computes the union of all the elements of this geometry. The result obeys the following contract: Unioning a set of LineStrings has the effect of fully noding and dissolving the linework. Unioning a set of Polygons will always return a Polygon or MultiPolygon geometry (unlike GEOSGeometry.union(), which may return geometries of lower dimension if a topology collapse occurs).

FieldFile.url A read-only property to access the file’s relative URL by calling the url() method of the underlying Storage class.

field_widths Returns a list of the maximum field widths for each of the fields in this layer: >>> layer.field_widths [80, 11, 24, 10]

class models.CustomUser USERNAME_FIELD A string describing the name of the field on the User model that is used as the unique identifier. This will usually be a username of some kind, but it can also be an email address, or any other unique identifier. The field must be unique (i.e., have unique=True set in its definition), unless you use a custom authentication backend that can support non-unique usernames. In the following example, the field identifier is used as the identifying field:

class TestCase [source] This is the most common class to use for writing tests in Django. It inherits from TransactionTestCase (and by extension SimpleTestCase). If your Django application doesn’t use a database, use SimpleTestCase. The class: Wraps the tests within two nested atomic() blocks: one for the whole class and one for each test. Therefore, if you want to test some specific database transaction behavior, use TransactionTestCase. Checks deferrable database constraints at the end of

GEOSGeometry.point_on_surface Computes and returns a Point guaranteed to be on the interior of this geometry.

DiscoverRunner.test_loader This is the class that loads tests, whether from TestCases or modules or otherwise and bundles them into test suites for the runner to execute. By default it is set to unittest.defaultTestLoader. You can override this attribute if your tests are going to be loaded in unusual ways.

format The format in which this field’s initial value will be displayed. If no format argument is provided, the default format is the first format found in DATE_INPUT_FORMATS and respects Format localization.