diff --git a/solvable/src/event_handler_main.py b/solvable/src/event_handler_main.py
index a5862ea..e342534 100644
--- a/solvable/src/event_handler_main.py
+++ b/solvable/src/event_handler_main.py
@@ -8,11 +8,12 @@ from tfw.config import TFWENV
 from tfw.message_sender import MessageSender
 from tfw.networking.event_handlers.server_connector import ServerUplinkConnector
 from tfw.config.logs import logging
-log = logging.getLogger(__name__)
+
+LOG = logging.getLogger(__name__)
 
 
 def cenator(history):
-    log.debug('User executed command: "{}"'.format(history[-1]))
+    LOG.debug('User executed command: "%s"', history[-1])
     MessageSender().send('JOHN CENA', 'You\'ve executed "{}"'.format(history[-1]))
 
 
@@ -23,8 +24,8 @@ def selectdir(history):
             ServerUplinkConnector().send_to_eventhandler('webide',
                                                          {'data': {'command': 'selectdir',
                                                                    'directory': cmd[1]}})
-    except Exception:
-        log.exception('Selectdir failed!')
+    except IndexError:
+        LOG.exception('Selectdir failed!')
 
 
 def toggle_next(history):
@@ -35,12 +36,13 @@ def toggle_next(history):
             ServerUplinkConnector().send('messagecontrol',
                                          {'data': {'command': 'showbutton',
                                                    'next_visibility': toggle_next.button_state}})
-    except Exception:
-        log.exception('Togglenext failed!')
+    except IndexError:
+        LOG.exception('Togglenext failed!')
 toggle_next.button_state = False
 
 
 if __name__ == '__main__':
+    # pylint: disable=invalid-name
     ide = SourceCodeEventHandler(key='webide', directory=TFWENV.WEBIDE_WD, exclude=['*.pyc'])
     terminado = TerminadoEventHandler(key='shell', monitor=BashMonitor(TFWENV.HISTFILE))
     terminado.historymonitor.subscribe_callback(cenator)
@@ -52,4 +54,5 @@ if __name__ == '__main__':
     try:
         IOLoop.instance().start()
     finally:
-        for eh in eventhandlers: eh.cleanup()
+        for eh in eventhandlers:
+            eh.cleanup()