diff --git a/scenario_player/main.py b/scenario_player/main.py
index 54244003d..fbe8f6ed5 100644
--- a/scenario_player/main.py
+++ b/scenario_player/main.py
@@ -26,9 +26,7 @@
 from raiden.utils.cli import EnumChoiceType
 from scenario_player import tasks
 from scenario_player.exceptions import ScenarioAssertionError, ScenarioError
-from scenario_player.exceptions.services import ServiceProcessException
 from scenario_player.runner import ScenarioRunner
-from scenario_player.services.common.app import ServiceProcess
 from scenario_player.tasks.base import collect_tasks
 from scenario_player.ui import ScenarioUI, attach_urwid_logbuffer
 from scenario_player.utils import (
diff --git a/scenario_player/services/utils/factories.py b/scenario_player/services/utils/factories.py
index 4bb130705..e60132ad9 100644
--- a/scenario_player/services/utils/factories.py
+++ b/scenario_player/services/utils/factories.py
@@ -72,7 +72,7 @@ def daemonize(pidfile: pathlib.Path, *, stdin="/dev/null", stdout="/dev/null", s
     try:
         if os.fork() > 0:
             raise SystemExit(0)  # Parent exit
-    except OSError as e:
+    except OSError:
         raise RuntimeError("fork #1 failed.")
 
     os.chdir("/")
@@ -82,7 +82,7 @@ def daemonize(pidfile: pathlib.Path, *, stdin="/dev/null", stdout="/dev/null", s
     try:
         if os.fork() > 0:
             raise SystemExit(0)
-    except OSError as e:
+    except OSError:
         raise RuntimeError("fork #2 failed.")
 
     # Flush I/O buffers