python package import modules using __init__.py

I have made a package in the following structure:

test.py
pakcage1/
    __init__.py
    module1.py
    module2.py

In the test.py file, with the code

from package1 import *

what I want it to do is to

from numpy import *
from module1 import *
from module2 import *

What should I write in __init__.py file to achieve this?

Currently in my __init__.py file I have

from numpy import *
__all__ = ['module1',module2']

and this doesn't give me what I wanted. In this way numpy wan't imported at all, and the modules are imported as

import module1

rather than

from module1 import *