--- a/eric7/Preferences/ConfigurationPages/DebuggerGeneralPage.py	Sun May 23 13:33:13 2021 +0200
+++ b/eric7/Preferences/ConfigurationPages/DebuggerGeneralPage.py	Sun May 23 15:35:49 2021 +0200
@@ -44,7 +44,9 @@
             self.execLineEdit.setWhatsThis(t)
         
         try:
-            backends = ericApp().getObject("DebugServer").getSupportedLanguages()
+            backends = (
+                ericApp().getObject("DebugServer").getSupportedLanguages()
+            )
             for backend in sorted(backends):
                 self.passiveDbgBackendCombo.addItem(backend)
         except KeyError: