New submission from Abdulrahman Alabdulkareem :
I get a random TypeError exception thrown whenever I interrupt/kill a sleeping
parent thread from a child thread but ONLY if the python script was invoked by
a shell script with an & argument to make it run in the background. (this is in
vanilla python)
This doesn't happen if invoked
(1) in command line
(2) in command line with &
(3) in shell script (without &)
Only in shell script with &.
Here is the python script named psc.py https://pastebin.com/raw/KZQptCMr
And here is the shell script named ssc.sh https://pastebin.com/raw/QQzs4Tpz
that when ran will run the python script and cause the strange behaviour
Here is the output I'm seeing: ---
parent looping
child interrupting parent
why would I ever catch a TypeError?
Traceback (most recent call last):
File "m.py", line 17, in
time.sleep(1)
TypeError: 'int' object is not callable
Here is the output I'm expecting:
parent looping
child interrupting parent
caught interruption raised from user or child thread :)
Another unexpected behaviour might be that python suddenly hangs.
Here is a stackoverflow question raised on this issue with discussion in the
comments
https://stackoverflow.com/questions/65440353/python-time-sleep1-raises-typeerror?noredirect=1#comment115697237_65440353
--
messages: 383695
nosy: master3243
priority: normal
severity: normal
status: open
title: TypeError in Time.Sleep when invoked from shell script background
versions: Python 3.7
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<https://bugs.python.org/issue42730>
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