Follow coding style.

Also, update exception raising style.

bt5/erp5_banking_core/SkinTemplateItem/portal_skins/erp5_banking_core/Baobab_getAccountForSite.xml

@@ -56,8 +56,8 @@ orga_id = "site_%3s" %(site.getCodification())\n
 organisation = context.organisation_module[orga_id]\n
 \n
 account_list = [x for x in organisation.objectValues(portal_type=\'Bank Account\') if x.getValidationState() == \'valid\']\n
-if len(account_list)!=1:\n
-  raise ValueError, \'Must not get %d account for the organisation %s\' % (len(account_list), organisation.getTitleOrId())\n
+if len(account_list) != 1:\n
+  raise ValueError(\'Must not get %d account for the organisation %s\' % (len(account_list), organisation.getTitleOrId()))\n
 return account_list[0]\n
 </string> </value>
         </item>