python · terryjreedy · Apr 29, 2021 · Apr 28, 2021 · Apr 28, 2021 · Apr 29, 2021
diff --git a/Lib/idlelib/NEWS.txt b/Lib/idlelib/NEWS.txt
@@ -4,6 +4,13 @@ Released on 2021-10-04?
 =========================


+bpo-37892: Change Shell input indents from tabs to spaces.
+
+bpo-37903: Move the Shell input prompt to a side bar.
+
+bpo-43655: Make window managers on macOS and X Window recognize
+IDLE dialog windows as dialogs.
+
 bpo-43283: Document why printing to IDLE's Shell is often slower than
 printing to a system terminal and that it can be made faster by
 pre-formatting a single string before printing.

diff --git a/Lib/idlelib/pyshell.py b/Lib/idlelib/pyshell.py
@@ -889,11 +889,11 @@ def __init__(self, flist=None):

        OutputWindow.__init__(self, flist, None, None)

-        self.usetabs = True
+        self.usetabs = False
        # indentwidth must be 8 when using tabs.  See note in EditorWindow:
-        self.indentwidth = 8
+        self.indentwidth = 4

-        self.sys_ps1 = sys.ps1 if hasattr(sys, 'ps1') else '>>> '
+        self.sys_ps1 = sys.ps1 if hasattr(sys, 'ps1') else '>>>\n'
        self.prompt_last_line = self.sys_ps1.split('\n')[-1]
        self.prompt = self.sys_ps1  # Changes when debug active


diff --git a/Misc/NEWS.d/next/IDLE/2021-04-29-02-40-41.bpo-37892.bgW2fk.rst b/Misc/NEWS.d/next/IDLE/2021-04-29-02-40-41.bpo-37892.bgW2fk.rst
@@ -0,0 +1 @@
+Indent IDLE Shell input with spaces instead of tabs
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Indent IDLE Shell input with spaces instead of tabs