diff --git a/glance/api/authorization.py b/glance/api/authorization.py
index 8c053493ac..ca49704d84 100644
--- a/glance/api/authorization.py
+++ b/glance/api/authorization.py
@@ -124,8 +124,7 @@ class ImageMemberRepoProxy(glance.domain.proxy.Repo):
 
     def get(self, member_id):
         if (self.context.is_admin or
-                self.context.owner == self.image.owner or
-                self.context.owner == member_id):
+                self.context.owner in (self.image.owner, member_id)):
             member = self.member_repo.get(member_id)
             return proxy_member(self.context, member)
         else:
diff --git a/glance/api/v2/images.py b/glance/api/v2/images.py
index 2b02228bd7..3f8c7b5d4f 100644
--- a/glance/api/v2/images.py
+++ b/glance/api/v2/images.py
@@ -293,7 +293,7 @@ class ImagesController(object):
         except Exception as e:
             raise webob.exc.HTTPInternalServerError(
                 explanation=utils.exception_to_str(e))
-        if (len(image.locations) == 0) and (image.status == 'active'):
+        if len(image.locations) == 0 and image.status == 'active':
             image.status = 'queued'
 
 
diff --git a/glance/cmd/control.py b/glance/cmd/control.py
index fe3464a77f..da1f6ea0fc 100644
--- a/glance/cmd/control.py
+++ b/glance/cmd/control.py
@@ -380,8 +380,7 @@ def main():
             pid_file = get_pid_file(server, CONF.pid_file)
             do_start('Restart', pid_file, server, CONF.server.args)
 
-    if (CONF.server.command == 'reload' or
-            CONF.server.command == 'force-reload'):
+    if CONF.server.command in ('reload', 'force-reload'):
         for server in CONF.server.servers:
             do_stop(server, CONF.server.args, graceful=True)
             pid_file = get_pid_file(server, CONF.pid_file)
diff --git a/glance/db/simple/api.py b/glance/db/simple/api.py
index 4f692a60fc..1b91791885 100644
--- a/glance/db/simple/api.py
+++ b/glance/db/simple/api.py
@@ -494,7 +494,7 @@ def image_member_create(context, values):
 def image_member_update(context, member_id, values):
     global DATA
     for member in DATA['members']:
-        if (member['id'] == member_id):
+        if member['id'] == member_id:
             member.update(values)
             member['updated_at'] = timeutils.utcnow()
             return copy.deepcopy(member)
@@ -506,7 +506,7 @@ def image_member_update(context, member_id, values):
 def image_member_delete(context, member_id):
     global DATA
     for i, member in enumerate(DATA['members']):
-        if (member['id'] == member_id):
+        if member['id'] == member_id:
             del DATA['members'][i]
             break
     else:
@@ -541,7 +541,7 @@ def image_location_update(context, image_id, location):
 
     updated = False
     for loc in DATA['locations']:
-        if (loc['id'] == loc_id and loc['image_id'] == image_id):
+        if loc['id'] == loc_id and loc['image_id'] == image_id:
             loc.update({"value": location['url'],
                         "meta_data": location['metadata'],
                         "status": location['status'],
@@ -568,7 +568,7 @@ def image_location_delete(context, image_id, location_id, status,
 
     deleted = False
     for loc in DATA['locations']:
-        if (loc['id'] == location_id and loc['image_id'] == image_id):
+        if loc['id'] == location_id and loc['image_id'] == image_id:
             deleted = True
             delete_time = delete_time or timeutils.utcnow()
             loc.update({"deleted": deleted,
@@ -1694,8 +1694,7 @@ def metadef_tag_get(context, namespace_name, name):
     _check_namespace_visibility(context, namespace, namespace_name)
 
     for tag in DATA['metadef_tags']:
-        if (tag['namespace_id'] == namespace['id'] and
-                tag['name'] == name):
+        if tag['namespace_id'] == namespace['id'] and tag['name'] == name:
             return tag
     else:
         msg = ("The metadata definition tag with name=%(name)s"
@@ -1713,8 +1712,7 @@ def metadef_tag_get_by_id(context, namespace_name, id):
     _check_namespace_visibility(context, namespace, namespace_name)
 
     for tag in DATA['metadef_tags']:
-        if (tag['namespace_id'] == namespace['id'] and
-                tag['id'] == id):
+        if tag['namespace_id'] == namespace['id'] and tag['id'] == id:
             return tag
     else:
         msg = (_("Metadata definition tag not found for id=%s") % id)
@@ -1752,8 +1750,7 @@ def metadef_tag_create(context, namespace_name, values):
     namespace = metadef_namespace_get(context, namespace_name)
 
     for tag in DATA['metadef_tags']:
-        if (tag['name'] == tag_name and
-                tag['namespace_id'] == namespace['id']):
+        if tag['name'] == tag_name and tag['namespace_id'] == namespace['id']:
             msg = ("A metadata definition tag with name=%(name)s"
                    " in namespace=%(namespace_name)s already exists."
                    % {'name': tag_name, 'namespace_name': namespace_name})
diff --git a/glance/db/sqlalchemy/api.py b/glance/db/sqlalchemy/api.py
index ab4175f7ab..482202740d 100644
--- a/glance/db/sqlalchemy/api.py
+++ b/glance/db/sqlalchemy/api.py
@@ -1306,8 +1306,7 @@ def task_get_all(context, filters=None, marker=None, limit=None,
     session = get_session()
     query = session.query(models.Task)
 
-    if (not (context.is_admin or admin_as_user == True)
-       and context.owner is not None):
+    if not (context.is_admin or admin_as_user) and context.owner is not None:
         query = query.filter(models.Task.owner == context.owner)
 
     showing_deleted = False
diff --git a/glance/db/sqlalchemy/migrate_repo/versions/022_image_member_index.py b/glance/db/sqlalchemy/migrate_repo/versions/022_image_member_index.py
index 89221f6e24..3c477966ca 100644
--- a/glance/db/sqlalchemy/migrate_repo/versions/022_image_member_index.py
+++ b/glance/db/sqlalchemy/migrate_repo/versions/022_image_member_index.py
@@ -29,8 +29,7 @@ ORIGINAL_KEYNAME_RE = re.compile('image_members_image_id.*_key')
 def upgrade(migrate_engine):
     image_members = _get_image_members_table(migrate_engine)
 
-    if (migrate_engine.name == 'mysql' or
-            migrate_engine.name == 'postgresql'):
+    if migrate_engine.name in ('mysql', 'postgresql'):
         try:
             UniqueConstraint('image_id',
                              name=_get_original_keyname(migrate_engine.name),
@@ -49,8 +48,7 @@ def upgrade(migrate_engine):
 def downgrade(migrate_engine):
     image_members = _get_image_members_table(migrate_engine)
 
-    if (migrate_engine.name == 'mysql' or
-            migrate_engine.name == 'postgresql'):
+    if migrate_engine.name in ('mysql', 'postgresql'):
         _sanitize(migrate_engine, image_members)
         UniqueConstraint('image_id',
                          name=NEW_KEYNAME,
diff --git a/glance/location.py b/glance/location.py
index 304050fa97..411465a296 100644
--- a/glance/location.py
+++ b/glance/location.py
@@ -116,7 +116,7 @@ def _count_duplicated_locations(locations, new):
 
     ret = 0
     for loc in locations:
-        if (loc['url'] == new['url'] and loc['metadata'] == new['metadata']):
+        if loc['url'] == new['url'] and loc['metadata'] == new['metadata']:
             ret += 1
     return ret
 
diff --git a/glance/tests/unit/test_scrubber.py b/glance/tests/unit/test_scrubber.py
index 4feeefc593..7b960b17b1 100644
--- a/glance/tests/unit/test_scrubber.py
+++ b/glance/tests/unit/test_scrubber.py
@@ -133,7 +133,7 @@ class TestScrubDBQueue(test_utils.BaseTestCase):
 class ImagePager(object):
     def __init__(self, images, page_size=0):
         image_count = len(images)
-        if (page_size == 0) or (page_size > image_count):
+        if page_size == 0 or page_size > image_count:
             page_size = image_count
         self.image_batches = []
         start = 0