django updateview improperly code example

Example: django updateview class

###### views.py #####
from .models import Article
from .forms import  UpdateArticleForm
from django.views.generic import UpdateView
class ArticleUpdateView(UpdateView):
    model = Article
    form_class = UpdateArticleForm
    template_name = 'articles/create_article.html'
    
###### urls.py  ######
from .views import ArticleUpdateView
urlpatterns =[ 
  path('articles/<int:pk>/update/', ArticleUpdateView.as_view()),]
# pk is default value (for primary key of id of an instance of object