commit 01638ce51a63afe5af3f778e7403702703bb41b9
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Mon Jun 29 17:36:46 2020 -0700
committer GitHub <noreply@github.com> Mon Jun 29 17:36:46 2020 -0700
tree ba86e00c938703da400ecd6a0505235c4513545a
parent 9a646aa82dfa62d70ca2a99ada901ee6cf9f82bd

bpo-41152: IDLE: always use UTF-8 for standard IO streams (GH-21214)

(cherry picked from commit 2515a28230b1a011205f30263da6b01c6bd167a3)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

Lib/idlelib/outwin.py

diff --git a/Lib/idlelib/outwin.py b/Lib/idlelib/outwin.py
index 90272b6..5ab08bb 100644
--- a/Lib/idlelib/outwin.py
+++ b/Lib/idlelib/outwin.py
@@ -6,7 +6,6 @@
 from tkinter import messagebox
 
 from idlelib.editor import EditorWindow
-from idlelib import iomenu
 
 
 file_line_pats = [
@@ -110,8 +109,7 @@
         Return:
             Length of text inserted.
         """
-        if isinstance(s, bytes):
-            s = s.decode(iomenu.encoding, "replace")
+        assert isinstance(s, str)
         self.text.insert(mark, s, tags)
         self.text.see(mark)
         self.text.update()