diff --git a/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/Login_analyzePassword.xml b/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/Login_analyzePassword.xml
index 76f8437261231ae65d3dbb3ecc0adaa0c7451870..cf7f006e03b5ef441d0a5f7f062292a834473175 100644
--- a/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/Login_analyzePassword.xml
+++ b/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/Login_analyzePassword.xml
@@ -50,7 +50,7 @@
         </item>
         <item>
             <key> <string>_params</string> </key>
-            <value> <string>password, request={}</string> </value>
+            <value> <string>password, request=None</string> </value>
         </item>
         <item>
             <key> <string>_proxy_roles</string> </key>
diff --git a/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/Login_notifyLoginFailure.py b/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/Login_notifyLoginFailure.py
index e316a903ccd4c4750876074347f8bac321d2bde2..eb638f094e39e67257e0be6cf978667b394ec60c 100644
--- a/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/Login_notifyLoginFailure.py
+++ b/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/Login_notifyLoginFailure.py
@@ -1,7 +1,6 @@
 """
   File a failed authentication attempt.
 """
-from DateTime import DateTime
 portal = context.getPortalObject()
 portal_preferences = portal.portal_preferences
 
diff --git a/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/Login_unblockLogin.py b/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/Login_unblockLogin.py
index 66bfbb82b2ec18266708ff56b03c8b6e5f98cd6f..742b2e41e9343e7b6a84c0f4d5dc049aad8b38a1 100644
--- a/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/Login_unblockLogin.py
+++ b/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/Login_unblockLogin.py
@@ -10,8 +10,6 @@ if not portal.portal_preferences.isAuthenticationPolicyEnabled():
 now = DateTime()
 one_second = 1/24.0/60.0/60.0
 check_duration = portal_preferences.getPreferredAuthenticationFailureCheckDuration()
-block_duration = portal_preferences.getPreferredAuthenticationFailureBlockDuration()
-max_authentication_failures = portal_preferences.getPreferredMaxAuthenticationFailure()
 check_time = now - check_duration*one_second
 
 # acknowledge last authentication events for user
diff --git a/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/SystemEventModule_expireAuthenticationEventList.py b/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/SystemEventModule_expireAuthenticationEventList.py
index 65effc083efe63377969c4dbe5a7900cc7a6e4d2..cf0af45c2596856eb353ec9c2771e8a1d2a0ee26 100644
--- a/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/SystemEventModule_expireAuthenticationEventList.py
+++ b/bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/SystemEventModule_expireAuthenticationEventList.py
@@ -3,7 +3,6 @@
 """
 from DateTime import DateTime
 from Products.ZSQLCatalog.SQLCatalog import Query
-from Products.ERP5Type.Document import newTempBase
 
 portal = context.getPortalObject()
 portal_preferences = portal.portal_preferences
diff --git a/bt5/erp5_authentication_policy/bt/skip_coding_style_test b/bt5/erp5_authentication_policy/bt/skip_coding_style_test
deleted file mode 100644
index 56a6051ca2b02b04ef92d5150c9ef600403cb1de..0000000000000000000000000000000000000000
--- a/bt5/erp5_authentication_policy/bt/skip_coding_style_test
+++ /dev/null
@@ -1 +0,0 @@
-1
\ No newline at end of file