bpo-41775: Make 'IDLE Shell' the shell title (GH-22399)

'Python Shell' may have contributed to some beginners confusing 'IDLE' with ' Python'.
(cherry picked from commit 05cc881)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

Author: miss-islington

Lib/idlelib/NEWS.txt

@@ -3,6 +3,8 @@ Released on 2020-12-07?
 ======================================
 
 
+bpo-41775: Make 'IDLE Shell' the shell title.
+
 bpo-35764: Rewrite the Calltips doc section.
 
 bpo-40181: In calltips, stop reminding that '/' marks the end of

Lib/idlelib/pyshell.py

@@ -833,7 +833,7 @@ def display_executing_dialog(self):
 
 class PyShell(OutputWindow):
 
-    shell_title = "Python " + python_version() + " Shell"
+    shell_title = "IDLE Shell " + python_version()
 
     # Override classes
     ColorDelegator = ModifiedColorDelegator

Misc/NEWS.d/next/IDLE/2020-09-24-14-31-16.bpo-41775.sB8Vre.rst

@@ -0,0 +1 @@
+Use 'IDLE Shell' as shell title