diff --git a/openlp/core/projectors/manager.py b/openlp/core/projectors/manager.py
index 9445c3f70..c8c01401e 100644
--- a/openlp/core/projectors/manager.py
+++ b/openlp/core/projectors/manager.py
@@ -484,8 +484,7 @@ class ProjectorManager(QtWidgets.QWidget, RegistryBase, UiProjectorManager, LogM
                 projector = list_item.data(QtCore.Qt.UserRole)
                 try:
                     projector.link.connect_to_host()
-                except Exception as e:
-                    print(e)
+                except Exception:
                     continue
 
     def on_delete_projector(self, opt=None):
diff --git a/openlp/core/projectors/pjlink.py b/openlp/core/projectors/pjlink.py
index 524bc8c3c..24f1b04ed 100644
--- a/openlp/core/projectors/pjlink.py
+++ b/openlp/core/projectors/pjlink.py
@@ -912,11 +912,11 @@ class PJLink(QtNetwork.QTcpSocket, PJLinkCommands):
         # Check for connection errors first
         if self.error_status != S_OK:
             log.debug('({ip}) Signalling error code'.format(ip=self.entry.name))
-            (code, message) = self._get_status(self.error_status)
+            code, message = self._get_status(self.error_status)
             status = self.error_status
         else:
             log.debug('({ip}) Signalling status code'.format(ip=self.entry.name))
-            (code, message) = self._get_status(status)
+            code, message = self._get_status(status)
         if msg is not None:
             message = msg
         elif message is None:
diff --git a/openlp/core/ui/advancedtab.py b/openlp/core/ui/advancedtab.py
index 3627e8f45..33909bdc2 100644
--- a/openlp/core/ui/advancedtab.py
+++ b/openlp/core/ui/advancedtab.py
@@ -455,7 +455,7 @@ class AdvancedTab(SettingsTab):
         Service Name options changed
         """
         self.service_name_day.setEnabled(default_service_enabled)
-        time_enabled = default_service_enabled and self.service_name_day.currentIndex() is not 7
+        time_enabled = default_service_enabled and self.service_name_day.currentIndex() != 7
         self.service_name_time.setEnabled(time_enabled)
         self.service_name_edit.setEnabled(default_service_enabled)
         self.service_name_revert_button.setEnabled(default_service_enabled)
@@ -497,7 +497,7 @@ class AdvancedTab(SettingsTab):
         """
         React to the day of the service name changing.
         """
-        self.service_name_time.setEnabled(service_day is not 7)
+        self.service_name_time.setEnabled(service_day != 7)
         self.update_service_name_example(None)
 
     def on_service_name_revert_button_clicked(self):
diff --git a/openlp/core/ui/themestab.py b/openlp/core/ui/themestab.py
index d1998ccca..ee87b79d0 100644
--- a/openlp/core/ui/themestab.py
+++ b/openlp/core/ui/themestab.py
@@ -206,7 +206,7 @@ class ThemesTab(SettingsTab):
         find_and_set_in_combo_box(self.default_combo_box, self.global_theme)
         # self.renderer.set_global_theme()
         self.renderer.set_theme_level(self.theme_level)
-        if self.global_theme is not '':
+        if self.global_theme != '':
             self._preview_global_theme()
 
     def _preview_global_theme(self):