--- a/PluginRefactoringRope.py	Sat Nov 21 16:41:12 2020 +0100
+++ b/PluginRefactoringRope.py	Sun Nov 22 16:25:22 2020 +0100
@@ -458,7 +458,7 @@
         if filename and os.path.exists(filename):
             try:
                 self.__oldEditorText = Utilities.readEncodedFile(filename)[0]
-            except IOError:
+            except OSError:
                 self.__oldEditorText = ""
             self.__savedEditorName = filename
         else: