diff --git a/cloudbaseinit/init.py b/cloudbaseinit/init.py
index 97250fd0..6adebe1a 100644
--- a/cloudbaseinit/init.py
+++ b/cloudbaseinit/init.py
@@ -60,11 +60,10 @@ class InitManager(object):
 
         status = self._get_plugin_status(osutils, instance_id, plugin_name)
         if status == plugins_base.PLUGIN_EXECUTION_DONE:
-            LOG.debug('Plugin \'%(plugin_name)s\' execution already done, '
-                      'skipping' % locals())
+            LOG.debug('Plugin \'%s\' execution already done, skipping',
+                      plugin_name)
         else:
-            LOG.info('Executing plugin \'%(plugin_name)s\'' %
-                     locals())
+            LOG.info('Executing plugin \'%s\'', plugin_name)
             try:
                 (status, reboot_required) = plugin.execute(service,
                                                            shared_data)
@@ -72,8 +71,8 @@ class InitManager(object):
                                         status)
                 return reboot_required
             except Exception, ex:
-                LOG.error('plugin \'%(plugin_name)s\' failed '
-                          'with error \'%(ex)s\'' % locals())
+                LOG.error('plugin \'%(plugin_name)s\' failed with error '
+                          '\'%(ex)s\'', {'plugin_name': plugin_name, 'ex': ex})
                 LOG.exception(ex)
 
     def _check_plugin_os_requirements(self, osutils, plugin):
diff --git a/cloudbaseinit/metadata/services/httpservice.py b/cloudbaseinit/metadata/services/httpservice.py
index 209fa617..76d27423 100644
--- a/cloudbaseinit/metadata/services/httpservice.py
+++ b/cloudbaseinit/metadata/services/httpservice.py
@@ -93,14 +93,14 @@ class HttpService(baseopenstackservice.BaseOpenStackService):
 
     def _get_data(self, path):
         norm_path = posixpath.join(CONF.metadata_base_url, path)
-        LOG.debug('Getting metadata from: %(norm_path)s' % locals())
+        LOG.debug('Getting metadata from: %s', norm_path)
         req = urllib2.Request(norm_path)
         response = self._get_response(req)
         return response.read()
 
     def _post_data(self, path, data):
         norm_path = posixpath.join(CONF.metadata_base_url, path)
-        LOG.debug('Posting metadata to: %(norm_path)s' % locals())
+        LOG.debug('Posting metadata to: %s', norm_path)
         req = urllib2.Request(norm_path, data=data)
         self._get_response(req)
         return True
diff --git a/cloudbaseinit/osutils/windows.py b/cloudbaseinit/osutils/windows.py
index db3aa1a4..f4413376 100644
--- a/cloudbaseinit/osutils/windows.py
+++ b/cloudbaseinit/osutils/windows.py
@@ -204,7 +204,7 @@ class WindowsUtils(base.BaseOSUtils):
         conn = wmi.WMI(moniker='//./root/cimv2')
         username_san = self._sanitize_wmi_input(username)
         q = conn.query('SELECT * FROM Win32_Account where name = '
-                       '\'%(username_san)s\'' % locals())
+                       '\'%s\'' % username_san)
         if len(q) > 0:
             return q[0]
         return None
@@ -226,10 +226,10 @@ class WindowsUtils(base.BaseOSUtils):
             self._set_user_password_expiration(username, password_expires)
         else:
             if create:
-                msg = "Create user failed: %(err)s"
+                msg = "Create user failed: %s"
             else:
-                msg = "Set user password failed: %(err)s"
-            raise Exception(msg % locals())
+                msg = "Set user password failed: %s"
+            raise Exception(msg % err)
 
     def _sanitize_wmi_input(self, value):
         return value.replace('\'', '\'\'')
@@ -359,7 +359,7 @@ class WindowsUtils(base.BaseOSUtils):
         adapter_name_san = self._sanitize_wmi_input(adapter_name)
         q = conn.query('SELECT * FROM Win32_NetworkAdapter WHERE '
                        'MACAddress IS NOT NULL AND '
-                       'Name = \'%(adapter_name_san)s\'' % locals())
+                       'Name = \'%s\'' % adapter_name_san)
         if not len(q):
             raise Exception("Network adapter not found")
 
@@ -457,7 +457,8 @@ class WindowsUtils(base.BaseOSUtils):
         (ret_val,) = service.ChangeStartMode(start_mode)
         if ret_val != 0:
             raise Exception('Setting service %(service_name)s start mode '
-                            'failed with return value: %(ret_val)d' % locals())
+                            'failed with return value: %(ret_val)d' %
+                            {'service_name': service_name, 'ret_val': ret_val})
 
     def start_service(self, service_name):
         LOG.debug('Starting service %s' % service_name)
@@ -465,7 +466,8 @@ class WindowsUtils(base.BaseOSUtils):
         (ret_val,) = service.StartService()
         if ret_val != 0:
             raise Exception('Starting service %(service_name)s failed with '
-                            'return value: %(ret_val)d' % locals())
+                            'return value: %(ret_val)d' %
+                            {'service_name': service_name, 'ret_val': ret_val})
 
     def stop_service(self, service_name):
         LOG.debug('Stopping service %s' % service_name)
@@ -473,7 +475,8 @@ class WindowsUtils(base.BaseOSUtils):
         (ret_val,) = service.StopService()
         if ret_val != 0:
             raise Exception('Stopping service %(service_name)s failed with '
-                            'return value: %(ret_val)d' % locals())
+                            'return value: %(ret_val)d' %
+                            {'service_name': service_name, 'ret_val': ret_val})
 
     def terminate(self):
         # Wait for the service to start. Polling the service "Started" property
@@ -552,7 +555,7 @@ class WindowsUtils(base.BaseOSUtils):
         (out, err, ret_val) = self.execute_process(args)
         # Cannot use the return value to determine the outcome
         if err:
-            raise Exception('Unable to add route: %(err)s' % locals())
+            raise Exception('Unable to add route: %s' % err)
 
     def check_os_version(self, major, minor, build=0):
         vi = Win32_OSVERSIONINFOEX_W()