Clean imports in code

In some part in the code we import objects. In the Openstack style
guidelines they recommend to import only modules.

http://docs.openstack.org/developer/hacking/#imports

Change-Id: I4b55cae8c2672f82025a95112b14d441d66f9d6d

ansible/action_plugins/merge_configs.py

@@ -14,15 +14,15 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from ConfigParser import ConfigParser
+import ConfigParser
 import inspect
 import os
 from six import StringIO
 
-from ansible.plugins.action import ActionBase
+from ansible.plugins import action
 
 
-class ActionModule(ActionBase):
+class ActionModule(action.ActionBase):
 
     TRANSFERS_FILES = True
 
@@ -62,7 +62,7 @@ class ActionModule(ActionBase):
         temp_vars = task_vars.copy()
         temp_vars.update(extra_vars)
 
-        config = ConfigParser()
+        config = ConfigParser.ConfigParser()
         old_vars = self._templar._available_variables
         self._templar.set_available_variables(temp_vars)
 

ansible/action_plugins/merge_yaml.py

@@ -28,10 +28,10 @@ except ImportError:
     from yaml import Loader  # noqa: F401
 
 
-from ansible.plugins.action import ActionBase
+from ansible.plugins import action
 
 
-class ActionModule(ActionBase):
+class ActionModule(action.ActionBase):
 
     TRANSFERS_FILES = True
 

tests/test_keystone.py

@@ -10,7 +10,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tests.clients import OpenStackClients
+from tests import clients
 import testtools
 
 
@@ -19,7 +19,7 @@ import testtools
 class KeystoneTest(testtools.TestCase):
     def setUp(self):
         super(KeystoneTest, self).setUp()
-        self.kc = OpenStackClients().get_client('KeystoneClient')
+        self.kc = clients.OpenStackClients().get_client('KeystoneClient')
 
     def test_tenants(self):
         result = self.kc.tenants.list()

tools/version-check.py

@@ -18,10 +18,10 @@ import os
 import re
 import sys
 
-from bs4 import BeautifulSoup as bs
+import bs4
 from oslo_config import cfg
 import pkg_resources
-from prettytable import PrettyTable
+import prettytable
 import requests
 
 PROJECT_ROOT = os.path.abspath(os.path.join(
@@ -58,7 +58,7 @@ def retrieve_upstream_versions():
         LOG.debug("Getting latest version for project %s from %s",
                   project, base)
         r = requests.get(base)
-        s = bs(r.text, 'html.parser')
+        s = bs4.BeautifulSoup(r.text, 'html.parser')
 
         for link in s.find_all('a'):
             version = link.get('href')
@@ -119,8 +119,8 @@ def diff_link(project, old_ref, new_ref):
 
 def compare_versions():
     up_to_date = True
-    result = PrettyTable(["Project", "Current version",
-                          "Latest version", "Comparing changes"])
+    result = prettytable.PrettyTable(["Project", "Current version",
+                                      "Latest version", "Comparing changes"])
     result.align = "l"
 
     for project in VERSIONS['upstream']: