Public bug reported:
Python programs using threading with deamon = True not longer kill the
thread once the python script is finished.
Here is a simple script to prove the point:
---
import threading as th
def thread_method():
input()
thread_test = th.Thread(target=thread_method, args=(), name='daemon_exit_test',
daemon=True)
thread_test.start()
print(thread_test.isDaemon())
print('print this then exit')
---
This creates a deamon thread, and holds it waiting for an input(), i.e.
enter key.
In the past, because the flag deamon=True, as soon as it reaches the end
of the script it will kill the thread. Now it does not behave like that,
and holds the thread open, which can be ended manually by pushing the
enter key to accept the input().
I tried in a python 3.9 and a python 3.12 environment, same issue.
Kernel Linux 6.5.0-17-generic x86_64
ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: python3 3.11.4-5
ProcVersionSignature: Ubuntu 6.5.0-17.17-generic 6.5.8
Uname: Linux 6.5.0-17-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: MATE
Date: Wed Feb 21 09:15:49 2024
InstallationDate: Installed on 2023-07-02 (234 days ago)
InstallationMedia: Ubuntu-MATE 23.04 "Lunar Lobster" - Release amd64 (20230415)
SourcePackage: python3-defaults
UpgradeStatus: Upgraded to mantic on 2024-02-17 (4 days ago)
** Affects: python3-defaults (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug mantic
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https://bugs.launchpad.net/bugs/2054468
Title:
python3 deamon thread not auto-ending on script end
Status in python3-defaults package in Ubuntu:
New
Bug description:
Python programs using threading with deamon = True not longer kill the
thread once the python script is finished.
Here is a simple script to prove the point:
---
import threading as th
def thread_method():
input()
thread_test = th.Thread(target=thread_method, args=(),
name='daemon_exit_test', daemon=True)
thread_test.start()
print(thread_test.isDaemon())
print('print this then exit')
---
This creates a deamon thread, and holds it waiting for an input(),
i.e. enter key.
In the past, because the flag deamon=True, as soon as it reaches the
end of the script it will kill the thread. Now it does not behave like
that, and holds the thread open, which can be ended manually by
pushing the enter key to accept the input().
I tried in a python 3.9 and a python 3.12 environment, same issue.
Kernel Linux 6.5.0-17-generic x86_64
ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: python3 3.11.4-5
ProcVersionSignature: Ubuntu 6.5.0-17.17-generic 6.5.8
Uname: Linux 6.5.0-17-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: MATE
Date: Wed Feb 21 09:15:49 2024
InstallationDate: Installed on 2023-07-02 (234 days ago)
InstallationMedia: Ubuntu-MATE 23.04 "Lunar Lobster" - Release amd64
(20230415)
SourcePackage: python3-defaults
UpgradeStatus: Upgraded to mantic on 2024-02-17 (4 days ago)
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