commit ba6c0d3b08768b1a6b9bebba5eeead840fdc9356
author Terry Jan Reedy <tjreedy@udel.edu> Sat Jun 08 00:22:45 2013 -0400
committer Terry Jan Reedy <tjreedy@udel.edu> Sat Jun 08 00:22:45 2013 -0400
tree 43af5a771d5a7db76050f041c804d85fe93e08cf
parent 50793b44382e8d2bdd3a89a0c1ecd8eb97093e22

#18151, part 1: Backport idlelilb portion of Andrew Svetlov's 3.4 patch
changing IOError to OSError (#16715).

Lib/idlelib/textView.py

diff --git a/Lib/idlelib/textView.py b/Lib/idlelib/textView.py
index b5fd7cd..dd50544 100644
--- a/Lib/idlelib/textView.py
+++ b/Lib/idlelib/textView.py
@@ -66,7 +66,7 @@
     try:
         with open(filename, 'r', encoding=encoding) as file:
             contents = file.read()
-    except IOError:
+    except OSError:
         import tkinter.messagebox as tkMessageBox
         tkMessageBox.showerror(title='File Load Error',
                                message='Unable to load file %r .' % filename,