grid api

I know this is quibbling, but it's usually better to do:

```python
from nose import with_setup
def init():
    pass

@with_setup(init)
def test_1():
    pass
```

OR

```python
from unittest import TestCase

class Test1(TestCase):
    def setUp():
        pass

    def test_1():
        pass
```

it just makes it clear that you're not testing anything in init... dunno, IMO.