--- a/eric6/Plugins/WizardPlugins/SetupWizard/SetupWizardDialog.py	Tue Oct 13 19:02:26 2020 +0200
+++ b/eric6/Plugins/WizardPlugins/SetupWizard/SetupWizardDialog.py	Wed Oct 14 17:50:39 2020 +0200
@@ -147,9 +147,8 @@
         filename = os.path.join(os.path.dirname(__file__),
                                 "data", "trove_classifiers.txt")
         try:
-            f = open(filename, "r")
-            lines = f.readlines()
-            f.close()
+            with open(filename, "r") as f:
+                lines = f.readlines()
         except (IOError, OSError) as err:
             E5MessageBox.warning(
                 self,