try last_order request user order_set latest date_create except DoesNo

try:
    last_order = request.user.order_set.latest('date_create')
except DoesNotExist:
    last_order = request.user.order_set.create()


NameError at /orders/new/chigour/
global name 'DoesNotExist' is not definedRequest Method:	POST
Request URL:	http://localhost:8000/orders/new/chigour/
Exception Type:	NameError
Exception Value:	global name 'DoesNotExist' is not defined

E:\my_project\django\koval_magazine\orders\views.py in get_goods_to_order 
...
       except DoesNotExist: