[New-bugs-announce] [issue37524] IDLE error on closing 3.8+ debug build

[Terry J. Reedy]

New submission from Terry J. Reedy <tjreedy at udel.edu>:

In Win Command Prompt, in master repository or 3.8 worktree with 32 bit debug build:

F:\dev\3x>python
Running Debug|Win32 interpreter...
Python 3.9.0a0 (heads/master:110a47c4f4, Jul  9 2019, 01:31:55) [MSC v.1900 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> quit()
***Exits okay***

F:\dev\3x>python -m idlelib
Running Debug|Win32 interpreter...
Exception ignored in: <idlelib.run.PseudoInputFile object at 0x053F5710>
Traceback (most recent call last):
  File "F:\dev\3x\lib\idlelib\run.py", line 488, in close
  File "F:\dev\3x\lib\idlelib\pyshell.py", line 1017, in close
  File "F:\dev\3x\lib\idlelib\editor.py", line 1019, in close
  File "F:\dev\3x\lib\idlelib\outwin.py", line 94, in maybesave
  File "F:\dev\3x\lib\idlelib\editor.py", line 952, in get_saved
AttributeError: 'NoneType' object has no attribute 'get_saved'

Same in 3.8 worktree, not in 3.7 worktree, not with installed 64 bit, non-debug 3.8.0b2

----------
assignee: terry.reedy
components: IDLE
messages: 347530
nosy: terry.reedy
priority: normal
severity: normal
stage: needs patch
status: open
title: IDLE error on closing 3.8+ debug build
type: behavior
versions: Python 3.8, Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37524>
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