[Tutor] import confusion

[Eric Abrahamsen]

Hi there,

I'm trying to understand how module imports work, and am seeing some  
behavior I don't understand:

 >>> import django
 >>> from django import forms
 >>> from forms import DecimalField
Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
ImportError: No module named forms
 >>> import django.contrib
 >>> from django.contrib import auth
 >>> from auth import ImproperlyConfigured
Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
ImportError: No module named auth


So what I'm seeing is that you can import X, then from X import Y, but  
only if Y is another module and not an object. The import chains above  
work until I try to import a class definition. Can someone explain  
what it is about module imports that makes it work this way? And why  
the unhelpful error message?

Thanks!
Eric