How to pass Django model name to a function?

Question

Django

How to pass Django model name to a function?
view:

def get_obj(model_name, id):
    try:
        obj = models.model_name.objects.get(id=id)
    except (ObjectDoesNotExist, ValueError, TypeError):
        obj = None
    return obj

post = self.get_obj('Post', post_id)

Answer 1

getattr(models, model_name).objects.get(id=id)