diff --git a/rhodecode/lib/celerypylons/commands.py b/rhodecode/lib/celerypylons/commands.py
--- a/rhodecode/lib/celerypylons/commands.py
+++ b/rhodecode/lib/celerypylons/commands.py
@@ -35,7 +35,7 @@ class CeleryCommand(BasePasterCommand):
         except KeyError:
             CELERY_ON = False
 
-        if CELERY_ON == False:
+        if not CELERY_ON:
             raise Exception('Please enable celery_on in .ini config '
                             'file before running celeryd')
         rhodecode.CELERY_ON = CELERY_ON
diff --git a/rhodecode/lib/dbmigrate/migrate/versioning/version.py b/rhodecode/lib/dbmigrate/migrate/versioning/version.py
--- a/rhodecode/lib/dbmigrate/migrate/versioning/version.py
+++ b/rhodecode/lib/dbmigrate/migrate/versioning/version.py
@@ -90,7 +90,7 @@ class Collection(pathed.Pathed):
         return max([VerNum(0)] + self.versions.keys())
 
     def _next_ver_num(self, use_timestamp_numbering):
-        if use_timestamp_numbering == True:
+        if use_timestamp_numbering:
             return VerNum(int(datetime.utcnow().strftime('%Y%m%d%H%M%S')))
         else:
             return self.latest + 1
diff --git a/rhodecode/lib/utils.py b/rhodecode/lib/utils.py
--- a/rhodecode/lib/utils.py
+++ b/rhodecode/lib/utils.py
@@ -555,7 +555,7 @@ def load_rcextensions(root_path):
 
         #OVERRIDE OUR EXTENSIONS FROM RC-EXTENSIONS (if present)
 
-        if getattr(EXT, 'INDEX_EXTENSIONS', []) != []:
+        if getattr(EXT, 'INDEX_EXTENSIONS', []):
             log.debug('settings custom INDEX_EXTENSIONS')
             conf.INDEX_EXTENSIONS = getattr(EXT, 'INDEX_EXTENSIONS', [])
 
diff --git a/rhodecode/model/permission.py b/rhodecode/model/permission.py
--- a/rhodecode/model/permission.py
+++ b/rhodecode/model/permission.py
@@ -123,7 +123,7 @@ class PermissionModel(BaseModel):
                 self.sa.add(p)
 
             #stage 3 update all default permissions for repos if checked
-            if form_result['overwrite_default_repo'] == True:
+            if form_result['overwrite_default_repo']:
                 _def_name = form_result['default_repo_perm'].split('repository.')[-1]
                 _def = Permission.get_by_key('repository.' + _def_name)
                 # repos
@@ -136,7 +136,7 @@ class PermissionModel(BaseModel):
                         r2p.permission = _def
                         self.sa.add(r2p)
 
-            if form_result['overwrite_default_group'] == True:
+            if form_result['overwrite_default_group']:
                 _def_name = form_result['default_group_perm'].split('group.')[-1]
                 # groups
                 _def = Permission.get_by_key('group.' + _def_name)
@@ -146,7 +146,7 @@ class PermissionModel(BaseModel):
                     g2p.permission = _def
                     self.sa.add(g2p)
 
-            if form_result['overwrite_default_user_group'] == True:
+            if form_result['overwrite_default_user_group']:
                 _def_name = form_result['default_user_group_perm'].split('usergroup.')[-1]
                 # groups
                 _def = Permission.get_by_key('usergroup.' + _def_name)