diff --git a/glance_store/_drivers/filesystem.py b/glance_store/_drivers/filesystem.py
index dc89e305..4b0e8045 100644
--- a/glance_store/_drivers/filesystem.py
+++ b/glance_store/_drivers/filesystem.py
@@ -37,14 +37,11 @@ from glance_store import capabilities
 from glance_store.common import utils
 import glance_store.driver
 from glance_store import exceptions
-from glance_store import i18n
+from glance_store.i18n import _, _LE, _LW
 import glance_store.location
 
 
 LOG = logging.getLogger(__name__)
-_ = i18n._
-_LE = i18n._LE
-_LW = i18n._LW
 
 _FILESYSTEM_CONFIGS = [
     cfg.StrOpt('filesystem_store_datadir',
diff --git a/glance_store/_drivers/http.py b/glance_store/_drivers/http.py
index 207b1c9a..985282ad 100644
--- a/glance_store/_drivers/http.py
+++ b/glance_store/_drivers/http.py
@@ -25,7 +25,7 @@ import requests
 from glance_store import capabilities
 import glance_store.driver
 from glance_store import exceptions
-from glance_store.i18n import _
+from glance_store.i18n import _, _LI
 import glance_store.location
 
 LOG = logging.getLogger(__name__)
@@ -110,7 +110,7 @@ class StoreLocation(glance_store.location.StoreLocation):
         else:
             self.user = None
         if netloc == '':
-            LOG.info(_("No address specified in HTTP URL"))
+            LOG.info(_LI("No address specified in HTTP URL"))
             raise exceptions.BadStoreUri(uri=uri)
         else:
             # IPv6 address has the following format [1223:0:0:..]:<some_port>
@@ -268,7 +268,7 @@ class Store(glance_store.driver.Store):
 
         if conn.is_redirect and conn.status_code not in (301, 302):
             reason = (_("The HTTP URL %(url)s attempted to redirect "
-                        "with an invalid %(status)s status code.") %
+                        "with an invalid %(status)s status code."),
                       {'url': loc.path, 'status': conn.status_code})
             LOG.info(reason)
             raise exceptions.BadStoreUri(message=reason)
diff --git a/glance_store/_drivers/rbd.py b/glance_store/_drivers/rbd.py
index 78852bf2..c9a1a072 100644
--- a/glance_store/_drivers/rbd.py
+++ b/glance_store/_drivers/rbd.py
@@ -32,8 +32,7 @@ from glance_store import capabilities
 from glance_store.common import utils
 from glance_store import driver
 from glance_store import exceptions
-from glance_store import i18n
-from glance_store.i18n import _
+from glance_store.i18n import _, _LE, _LI
 from glance_store import location
 
 try:
@@ -50,8 +49,6 @@ DEFAULT_CHUNKSIZE = 8  # in MiB
 DEFAULT_SNAPNAME = 'snap'
 
 LOG = logging.getLogger(__name__)
-_LI = i18n._LI
-_LE = i18n._LE
 
 _RBD_OPTS = [
     cfg.IntOpt('rbd_store_chunk_size', default=DEFAULT_CHUNKSIZE,
diff --git a/glance_store/_drivers/s3.py b/glance_store/_drivers/s3.py
index da451229..499e1e2e 100644
--- a/glance_store/_drivers/s3.py
+++ b/glance_store/_drivers/s3.py
@@ -36,12 +36,10 @@ from glance_store import capabilities
 from glance_store.common import utils
 import glance_store.driver
 from glance_store import exceptions
-from glance_store.i18n import _
+from glance_store.i18n import _, _LE, _LI
 import glance_store.location
 
 LOG = logging.getLogger(__name__)
-_LE = glance_store.i18n._LE
-_LI = glance_store.i18n._LI
 
 DEFAULT_LARGE_OBJECT_SIZE = 100          # 100M
 DEFAULT_LARGE_OBJECT_CHUNK_SIZE = 10     # 10M
diff --git a/glance_store/_drivers/swift/store.py b/glance_store/_drivers/swift/store.py
index 01cc4043..8a3b8b9d 100644
--- a/glance_store/_drivers/swift/store.py
+++ b/glance_store/_drivers/swift/store.py
@@ -43,13 +43,11 @@ from glance_store._drivers.swift import utils as sutils
 from glance_store import capabilities
 from glance_store import driver
 from glance_store import exceptions
-from glance_store import i18n
+from glance_store.i18n import _, _LE, _LI
 from glance_store import location
 
 
-_ = i18n._
 LOG = logging.getLogger(__name__)
-_LI = i18n._LI
 
 DEFAULT_CONTAINER = 'glance'
 DEFAULT_LARGE_OBJECT_SIZE = 5 * units.Ki  # 5GB
@@ -307,16 +305,16 @@ def swift_retry_iter(resp_iter, length, store, location, manager):
         if bytes_read != length:
             if retries == store.conf.glance_store.swift_store_retry_get_count:
                 # terminate silently and let higher level decide
-                LOG.error(_("Stopping Swift retries after %d "
-                            "attempts") % retries)
+                LOG.error(_LE("Stopping Swift retries after %d "
+                              "attempts") % retries)
                 break
             else:
                 retries += 1
                 glance_conf = store.conf.glance_store
                 retry_count = glance_conf.swift_store_retry_get_count
-                LOG.info(_("Retrying Swift connection "
-                           "(%(retries)d/%(max_retries)d) with "
-                           "range=%(start)d-%(end)d") %
+                LOG.info(_LI("Retrying Swift connection "
+                             "(%(retries)d/%(max_retries)d) with "
+                             "range=%(start)d-%(end)d"),
                          {'retries': retries,
                           'max_retries': retry_count,
                           'start': bytes_read,
@@ -727,9 +725,9 @@ class BaseStore(driver.Store):
                         except Exception:
                             # Delete orphaned segments from swift backend
                             with excutils.save_and_reraise_exception():
-                                LOG.exception(_("Error during chunked upload "
-                                                "to backend, deleting stale "
-                                                "chunks"))
+                                reason = _LE("Error during chunked upload to "
+                                             "backend, deleting stale chunks")
+                                LOG.exception(reason)
                                 self._delete_stale_chunks(
                                     manager.get_connection(),
                                     location.container,
@@ -1189,7 +1187,8 @@ class MultiTenantStore(BaseStore):
         default_ref = self.conf.glance_store.default_swift_reference
         default_swift_reference = ref_params.get(default_ref)
         if not default_swift_reference:
-            reason = _("default_swift_reference %s is required.") % default_ref
+            reason = _("default_swift_reference %s is "
+                       "required."), default_ref
             LOG.error(reason)
             raise exceptions.BadStoreConfiguration(message=reason)
 
diff --git a/glance_store/_drivers/swift/utils.py b/glance_store/_drivers/swift/utils.py
index e172ebea..97a36124 100644
--- a/glance_store/_drivers/swift/utils.py
+++ b/glance_store/_drivers/swift/utils.py
@@ -20,44 +20,42 @@ from oslo_config import cfg
 from six.moves import configparser
 
 from glance_store import exceptions
-from glance_store import i18n
+from glance_store.i18n import _, _LE
 
 swift_opts = [
     cfg.StrOpt('default_swift_reference',
                default="ref1",
-               help=i18n._('The reference to the default swift account/backing'
-                           ' store parameters to use for adding new images.')),
+               help=_('The reference to the default swift account/backing'
+                      ' store parameters to use for adding new images.')),
     cfg.StrOpt('swift_store_auth_version', default='2',
-               help=i18n._('Version of the authentication service to use. '
-                           'Valid versions are 2 and 3 for keystone and 1 '
-                           '(deprecated) for swauth and rackspace.'),
+               help=_('Version of the authentication service to use. '
+                      'Valid versions are 2 and 3 for keystone and 1 '
+                      '(deprecated) for swauth and rackspace.'),
                deprecated_for_removal=True,
-               deprecated_reason=i18n._('Use "auth_version" in '
-                                        'swift_store_config_file.')
-               ),
+               deprecated_reason=_('Use "auth_version" in '
+                                   'swift_store_config_file.')),
     cfg.StrOpt('swift_store_auth_address',
-               help=i18n._('The address where the Swift authentication '
-                           'service is listening.'),
+               help=_('The address where the Swift authentication '
+                      'service is listening.'),
                deprecated_for_removal=True,
-               deprecated_reason=i18n._('Use "auth_address" in '
-                                        'swift_store_config_file')
-               ),
+               deprecated_reason=_('Use "auth_address" in '
+                                   'swift_store_config_file')),
     cfg.StrOpt('swift_store_user', secret=True,
-               help=i18n._('The user to authenticate against the Swift '
-                           'authentication service.'),
+               help=_('The user to authenticate against the Swift '
+                      'authentication service.'),
                deprecated_for_removal=True,
-               deprecated_reason=i18n._('Use "user" in '
-                                        'swift_store_config_file.')),
+               deprecated_reason=_('Use "user" in '
+                                   'swift_store_config_file.')),
     cfg.StrOpt('swift_store_key', secret=True,
-               help=i18n._('Auth key for the user authenticating against the '
-                           'Swift authentication service.'),
+               help=_('Auth key for the user authenticating against the '
+                      'Swift authentication service.'),
                deprecated_for_removal=True,
-               deprecated_reason=i18n._('Use "key" in '
-                                        'swift_store_config_file.')
+               deprecated_reason=_('Use "key" in '
+                                   'swift_store_config_file.')
                ),
     cfg.StrOpt('swift_store_config_file', secret=True,
-               help=i18n._('The config file that has the swift account(s)'
-                           'configs.')),
+               help=_('The config file that has the swift account(s)'
+                      'configs.')),
 ]
 
 _config_defaults = {'user_domain_id': 'default',
@@ -113,8 +111,8 @@ class SwiftParams(object):
             conf_file = self.conf.find_file(scf)
             CONFIG.read(conf_file)
         except Exception as e:
-            msg = (i18n._("swift config file "
-                          "%(conf)s:%(exc)s not found") %
+            msg = (_("swift config file "
+                     "%(conf)s:%(exc)s not found"),
                    {'conf': self.conf.glance_store.swift_store_config_file,
                     'exc': e})
             LOG.error(msg)
@@ -143,6 +141,5 @@ class SwiftParams(object):
 
                 account_params[ref] = reference
             except (ValueError, SyntaxError, configparser.NoOptionError) as e:
-                LOG.exception(i18n._("Invalid format of swift store config"
-                                     "cfg"))
+                LOG.exception(_LE("Invalid format of swift store config cfg"))
         return account_params
diff --git a/glance_store/backend.py b/glance_store/backend.py
index 2320e458..0cf01e35 100644
--- a/glance_store/backend.py
+++ b/glance_store/backend.py
@@ -23,15 +23,13 @@ from stevedore import extension
 
 from glance_store import capabilities
 from glance_store import exceptions
-from glance_store import i18n
+from glance_store.i18n import _
 from glance_store import location
 
 
 CONF = cfg.CONF
 LOG = logging.getLogger(__name__)
 
-_ = i18n._
-
 _STORE_OPTS = [
     cfg.ListOpt('stores', default=['file', 'http'],
                 help=_("List of stores enabled. Valid stores are: "
diff --git a/glance_store/capabilities.py b/glance_store/capabilities.py
index 8da8ce3a..d6963dab 100644
--- a/glance_store/capabilities.py
+++ b/glance_store/capabilities.py
@@ -24,9 +24,8 @@ from eventlet import tpool
 from oslo_utils import reflection
 
 from glance_store import exceptions
-from glance_store import i18n
+from glance_store.i18n import _LW
 
-_LW = i18n._LW
 _STORE_CAPABILITES_UPDATE_SCHEDULING_BOOK = {}
 _STORE_CAPABILITES_UPDATE_SCHEDULING_LOCK = threading.Lock()
 LOG = logging.getLogger(__name__)
diff --git a/glance_store/driver.py b/glance_store/driver.py
index 9e805cdf..45f69ce3 100644
--- a/glance_store/driver.py
+++ b/glance_store/driver.py
@@ -25,9 +25,8 @@ from oslo_utils import units
 
 from glance_store import capabilities
 from glance_store import exceptions
-from glance_store import i18n
+from glance_store.i18n import _
 
-_ = i18n._
 LOG = logging.getLogger(__name__)
 
 
diff --git a/glance_store/exceptions.py b/glance_store/exceptions.py
index fe59630d..e6b19a4e 100644
--- a/glance_store/exceptions.py
+++ b/glance_store/exceptions.py
@@ -20,9 +20,8 @@ import six
 import six.moves.urllib.parse as urlparse
 import warnings
 
-from glance_store import i18n
+from glance_store.i18n import _
 warnings.simplefilter('always')
-_ = i18n._
 
 
 class BackendException(Exception):