Get an object from the context or view.

def get_object(context):
    """
    Get an object from the context or view.
    """
    object = None

    view = context.get('view')
    if view:
        # View is more reliable then an 'object' variable in the context.
        # Works if this is a SingleObjectMixin
        object = getattr(view, 'object', None)

    if object is None:
        object = context.get('object', None)

    return object