cheese_blog = Blog.objects.get(name="Cheddar Talk")
entry.blog = cheese_blog
entry.save()

Traceback (most recent call last):
  File "<console>", line 1, in <module>
NameError: name 'entry' is not defined

>>> from mysite.blog.models import Blog, Entry
>>> cheese_blog = Blog.objects.get(name="Cheddar Talk")
>>> entry= Entry()
>>> entry.blog = cheese_blog
>>> entry.pub_date = "2008-10-10"
>>> entry.save()