I am using django and I have a file named models.admin.py and I want to do the following idea in models.py:
from \"models.admin\" import *
You are not referencing files in the import statement, you are referencing modules and packages.
Please read the docs, they are very clear on that matter.
Anyway, since you are using django, the usual approach won't work. If you want to keep models in separate files, rather than in models.py, you have to take extra steps, outlined, for example, here.
Edit:
Well, I don't really know what the questioneer means when he mentions admin and whether or not it is related to the admin interface of django. My points still stand.