diff --git a/src/client.py b/src/client.py
index 79c5eec..7c478f1 100644
--- a/src/client.py
+++ b/src/client.py
@@ -298,7 +298,7 @@ class Client(Base):
         resources = socket.getaddrinfo(host, port, socket.AF_UNSPEC,
                                        socket.SOCK_STREAM, socket.IPPROTO_TCP)
         for res in resources:
-            af, socktype, proto, canonname, sa = res
+            af, socktype, proto, _, sa = res
             try:
                 sock = socket.socket(af, socktype, proto)
                 sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
@@ -754,7 +754,6 @@ class Client(Base):
         data = None
         size = 1
         offset = 0
-        index = 0
 
         # Read data until size is reached
         while offset < size:
@@ -775,7 +774,7 @@ class Client(Base):
             self._logger.debug("size: %d", size)
             # For some commands the second line is the mimetype
             if has_mimetype:
-                mimetype = self._parse_dict([self._read_line()])['type']
+                self._parse_dict([self._read_line()])['type']
             # Next line is the count of bytes read
             binary = int(self._parse_dict([self._read_line()])['binary'])
             self._logger.debug("binary: %d", binary)
@@ -1148,7 +1147,7 @@ class MCGTrack:
         if date_string:
             try:
                 self._last_modified = dateutil.parser.isoparse(date_string)
-            except ValueError as e:
+            except ValueError:
                 self._logger.debug("Invalid date format: %s", date_string)
 
     def get_last_modified(self):
diff --git a/src/coverpanel.py b/src/coverpanel.py
index 803e1a4..89a6388 100644
--- a/src/coverpanel.py
+++ b/src/coverpanel.py
@@ -152,7 +152,7 @@ class CoverPanel(Gtk.Overlay):
                 # Load image and draw it
                 try:
                     self._cover_pixbuf = Utils.load_pixbuf(data)
-                except Exception as e:
+                except Exception:
                     self._logger.exception("Failed to set albumart")
                     self._cover_pixbuf = None
             else:
diff --git a/src/librarypanel.py b/src/librarypanel.py
index f595d4e..cc4ecc2 100644
--- a/src/librarypanel.py
+++ b/src/librarypanel.py
@@ -297,7 +297,7 @@ class LibraryPanel(Adw.Bin):
                 # Load image and draw it
                 try:
                     self._standalone_pixbuf = Utils.load_pixbuf(data)
-                except Exception as e:
+                except Exception:
                     self._logger.exception("Failed to set albumart")
                     self._standalone_pixbuf = self._get_default_image()
             else:
diff --git a/src/playlistpanel.py b/src/playlistpanel.py
index 1365b32..920b1bb 100644
--- a/src/playlistpanel.py
+++ b/src/playlistpanel.py
@@ -175,7 +175,7 @@ class PlaylistPanel(Adw.Bin):
                 # Load image and draw it
                 try:
                     self._standalone_pixbuf = Utils.load_pixbuf(data)
-                except Exception as e:
+                except Exception:
                     self._logger.exception("Failed to set albumart")
                     self._cover_pixbuf = self._get_default_image()
             else:
diff --git a/src/serverpanel.py b/src/serverpanel.py
index be7bd97..aceaa60 100644
--- a/src/serverpanel.py
+++ b/src/serverpanel.py
@@ -103,8 +103,8 @@ class ServerPanel(Adw.Bin):
                 button = Gtk.CheckButton.new_with_label(device.get_name())
                 if device.is_enabled():
                     button.set_active(True)
-                handler = button.connect('toggled',
-                                         self.on_output_device_toggled, device)
+                button.connect('toggled', self.on_output_device_toggled,
+                               device)
                 self.output_devices.insert(button, -1)
                 self._output_buttons[device.get_id()] = button