diff --git a/src/jukebox/components/jingle/jinglemp3/__init__.py b/src/jukebox/components/jingle/jinglemp3/__init__.py
index 1dc650380..14b73119b 100644
--- a/src/jukebox/components/jingle/jinglemp3/__init__.py
+++ b/src/jukebox/components/jingle/jinglemp3/__init__.py
@@ -1,6 +1,4 @@
-"""
-Generic MP3 jingle Service for jingle.JingleFactory
-"""
+"""Generic MP3 jingle Service for jingle.JingleFactory"""
 import logging
 import subprocess
 import jukebox.plugs as plugin
diff --git a/src/jukebox/components/playermpd/playcontentcallback.py b/src/jukebox/components/playermpd/playcontentcallback.py
index ce5a1b8fb..9e62dc27d 100644
--- a/src/jukebox/components/playermpd/playcontentcallback.py
+++ b/src/jukebox/components/playermpd/playcontentcallback.py
@@ -14,9 +14,7 @@ class PlayCardState(Enum):
 
 
 class PlayContentCallbacks(Generic[STATE], CallbackHandler):
-    """
-    Callbacks are executed in various play functions
-    """
+    """Callbacks are executed in various play functions"""
 
     def register(self, func: Callable[[str, STATE], None]):
         """
diff --git a/src/jukebox/components/rfid/cardutils.py b/src/jukebox/components/rfid/cardutils.py
index 7aaa0c0e6..dadc6b4b6 100644
--- a/src/jukebox/components/rfid/cardutils.py
+++ b/src/jukebox/components/rfid/cardutils.py
@@ -25,9 +25,11 @@ def decode_card_command(cfg_rpc_cmd: Mapping, logger: logging.Logger = log):
 
 
 def card_command_to_str(cfg_rpc_cmd: Mapping, long=False) -> List[str]:
-    """Returns a list of strings with [card_action, ignore_same_id_delay, ignore_card_removal_action]
+    """
+    Returns a list of strings with [card_action, ignore_same_id_delay, ignore_card_removal_action]
 
-    The last two parameters are only present, if *long* is True and if they are present in the cfg_rpc_cmd"""
+    The last two parameters are only present, if *long* is True and if they are present in the cfg_rpc_cmd
+    """
     action = decode_card_command(cfg_rpc_cmd)
     readable = [utils.rpc_call_to_str(action)]
     if long:
diff --git a/src/jukebox/components/volume/__init__.py b/src/jukebox/components/volume/__init__.py
index 807cb73a1..655e858c7 100644
--- a/src/jukebox/components/volume/__init__.py
+++ b/src/jukebox/components/volume/__init__.py
@@ -107,7 +107,7 @@ class SoundCardConnectCallbacks(CallbackHandler):
             * new sound card gets connected
 
         """
-    
+
         def register(self, func: Callable[[str, str], None]):
             """
             Add a new callback function :attr:`func`.
@@ -298,7 +298,7 @@ class OutputChangeCallbackHandler(CallbackHandler):
             * audio sink is changed
 
         """
-    
+
         def register(self, func: Callable[[str, str, int, int], None]):
             """
             Add a new callback function :attr:`func`.
@@ -330,7 +330,7 @@ class OutputVolumeCallbackHandler(CallbackHandler):
             * audio volume level is changed
 
         """
-    
+
         def register(self, func: Callable[[int, bool, bool], None]):
             """
             Add a new callback function :attr:`func`.