Merge pull request #497 from tseaver/quick-cleanups-20140107

Quick cleanups 20140107

Author: dhermes

gcloud/datastore/__init__.py

@@ -16,11 +16,12 @@
 
 You'll typically use these to get started with the API:
 
->>> from gcloud import datastore
->>> dataset = datastore.get_dataset('dataset-id-here')
->>> # Then do other things...
->>> query = dataset.query().kind('EntityKind')
->>> entity = dataset.entity('EntityKind')
+>>> from gcloud.datastore.entity import Entity
+>>> from gcloud.datastore.key import Key
+>>> from gcloud.datastore.query import Query
+>>> key = Key('EntityKind', 1234)
+>>> entity = Entity(key)
+>>> query = Query('your-dataset-id', kind='EntityKind')
 
 The main concepts with this API are:
 

gcloud/datastore/test___init__.py

@@ -40,11 +40,13 @@ class Test_set_default_dataset(unittest2.TestCase):
     def setUp(self):
         from gcloud.datastore import _implicit_environ
         self._replaced_dataset = _implicit_environ.DATASET
-        _implicit_environ.DATASET = None
+        self._replaced_dataset_id = _implicit_environ.DATASET_ID
+        _implicit_environ.DATASET = _implicit_environ.DATASET_ID = None
 
     def tearDown(self):
         from gcloud.datastore import _implicit_environ
         _implicit_environ.DATASET = self._replaced_dataset
+        _implicit_environ.DATASET_ID = self._replaced_dataset_id
 
     def _callFUT(self, dataset_id=None):
         from gcloud.datastore import set_default_dataset