[New-bugs-announce] [issue45381] IDLE cannot kill process. "interupt" ctl+c and "restart shell" freeze program.

[A A]

New submission from A A <capsicumw at gmail.com>:

Idle3 with python 3.7.3 on Debian Buster and XFCE.
Attempting to run the line 'print ("Hello World" * 8**8)' from either the Idle shell window or Idle editor will cause Idle to hang and one CPU core runs 100%.(allowed it to run for several minutes) 
ctl+c or menu Shell>interrupt execution simply pauses CPU processing but does not terminate the process nor is there an option to continue the process. Following this interrupt with use of menu Shell>Restart-shell causes Idle to fully freeze and then requires a system terminate signal to close Idle.
The same line of python used in Idle on another student's MS-Windows laptop required ctl-alt-del this was a fresh download with v3.9 as I recall.

When used used on the system Bash shell and python 3.7.3, the line operates without any trouble and finishes in 20seconds as: $ python3 -c 'print ( "Hello World " * 8**8)' 

Suggestion is that the ctl+c or the Interrupt menu option in Idle should terminate the running code rather than pause it.

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assignee: terry.reedy
components: IDLE
messages: 403259
nosy: capsicumw, terry.reedy
priority: normal
severity: normal
status: open
title: IDLE cannot kill process. "interupt" ctl+c and "restart shell" freeze program.
type: behavior
versions: Python 3.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue45381>
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