from django.forms import ModelForm
from myapp.models import Article

Create the form class.

class ArticleForm(ModelForm):
... class Meta:
... model = Article
... fields = ["pub_date", "headline", "content", "reporter"]
...

Creating a form to add an article.

form = ArticleForm()

Creating a form to change an existing article.

article = Article.objects.get(pk=1)
form = ArticleForm(instance=article)