diff --git a/pyproject.toml b/pyproject.toml
index 9f2e9f4..d838849 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,4 +3,8 @@ line-length = 140
 
 [tool.ruff]
 # Allow lines to be as long as 120.
-line-length = 140
\ No newline at end of file
+line-length = 140
+indent-width = 4
+
+[tool.ruff.lint]
+ignore = ["F401","F403","F405","E402"]
\ No newline at end of file
diff --git a/tisbackup.py b/tisbackup.py
index c78ad2b..2788dc8 100755
--- a/tisbackup.py
+++ b/tisbackup.py
@@ -29,6 +29,7 @@ sys.path.insert(0,os.path.join(tisbackup_root_dir,'libtisbackup'))
 import errno
 import logging
 import os.path
+
 from optparse import OptionParser
 
 from iniparse import ConfigParser, ini
@@ -191,7 +192,7 @@ class tis_backup:
         finally:
             self.logger.debug('worst nagios status :"%i"',worst_nagiosstatus)
             print('%s (tisbackup V%s)' %(nagiosoutput,version))
-            print('\n'.join(["[%s]:%s" % (l[0],l[1]) for l in globallog]))
+            print('\n'.join(["[%s]:%s" % (log_elem[0],log_elem[1]) for log_elem in globallog]))
             sys.exit(worst_nagiosstatus)
 
     def process_backup(self,sections=[]):
@@ -285,7 +286,6 @@ class tis_backup:
 
 
     def cleanup_backup_section(self,sections = []):
-        log = ''
         processed = False
         if not sections:
             sections = [backup_item.backup_name for backup_item in self.backup_list]
@@ -321,9 +321,9 @@ class tis_backup:
                 (nagiosstatus,log) = backup_item.checknagios(maxage_hours=maxage_hours)
                 globallog.append('[%s] %s' % (backup_item.backup_name,log))
                 self.logger.debug('[%s] nagios:"%i" log: %s',backup_item.backup_name,nagiosstatus,log)
-                processed = True
-                if nagiosstatus >= worst_nagiosstatus:
-                    worst_nagiosstatus = nagiosstatus
+                #processed = True
+                # if nagiosstatus >= worst_nagiosstatus:
+                #     worst_nagiosstatus = nagiosstatus
 
 
 def main():
@@ -398,7 +398,7 @@ def main():
         backup_sections = all_sections
     else:
         for b in backup_sections:
-            if not b in all_sections:
+            if b not in all_sections:
                 raise Exception('Section %s is not defined in config file' % b)
 
     if dry_run:
diff --git a/tisbackup_gui.py b/tisbackup_gui.py
index 57a1102..ea99d99 100755
--- a/tisbackup_gui.py
+++ b/tisbackup_gui.py
@@ -72,7 +72,7 @@ tasks_db = os.path.join(tisbackup_root_dir,"tasks.sqlite")
 def read_all_configs(base_dir):
     raw_configs = []
     list_config = []
-    config_base_dir = base_dir
+    #config_base_dir = base_dir
     
     for file in os.listdir(base_dir):
         if isfile(join(base_dir,file)): 
@@ -112,11 +112,12 @@ def read_all_configs(base_dir):
             backup_sections = all_sections
         else:
             for b in backup_sections:
-                if not b in all_sections:
+                if b not in all_sections:
                     raise Exception('Section %s is not defined in config file' % b)
 
-        if not backup_sections:
-            sections = [backup_item.backup_name for backup_item in backup.backup_list]
+        # never used..
+        # if not backup_sections:
+        #     sections = [backup_item.backup_name for backup_item in backup.backup_list]
 
         for backup_item in backup.backup_list:
             if backup_item.backup_name in backup_sections:
@@ -190,12 +191,14 @@ def read_config():
         backup_sections = all_sections
     else:
         for b in backup_sections:
-            if not b in all_sections:
+            if b not in all_sections:
                 raise Exception('Section %s is not defined in config file' % b)
 
     result = []
-    if not backup_sections:
-        sections = [backup_item.backup_name for backup_item in backup.backup_list]
+    
+    # not used ...
+    # if not backup_sections:
+    #     sections = [backup_item.backup_name for backup_item in backup.backup_list]
 
     for backup_item in backup.backup_list:
         if backup_item.backup_name in backup_sections:
@@ -261,7 +264,7 @@ def backup_all():
 @app.route('/config_number/')
 @app.route('/config_number/<int:id>')
 def set_config_number(id=None):
-    if id != None and  len(CONFIG) > id:
+    if id is not None and len(CONFIG) > id:
         global config_number
         config_number=id
         read_config()
@@ -350,7 +353,7 @@ def run_command(cmd, info=""):
     result =""
     try:
         result = check_output(cmd, stderr=subprocess.STDOUT,shell=True)
-    except CalledProcessError as e:
+    except CalledProcessError:
         raise_error(result,info)
     return result
 
@@ -376,7 +379,7 @@ def export_backup_status():
     exports = dbstat.query('select * from stats where TYPE="EXPORT" and backup_start>="%s"' % mindate)
     error = ""
     finish=not runnings_backups()
-    if  get_task() != None and finish:
+    if  get_task() is not None and finish:
         status = get_task().get()
         if status != "ok":
             error = "Export failing with error: "+status
@@ -386,8 +389,8 @@ def export_backup_status():
 
 def runnings_backups():
     task  = get_task()
-    is_runnig = (task != None)
-    finish = ( is_runnig and task.get() != None)
+    is_runnig = (task is not None)
+    finish = ( is_runnig and task.get() is not None)
     return is_runnig and not finish