[Python] Python multiprocessing.Queue strange behaviour

Hi I'm observing a strange behaviour with python multiprocessing Queue object.

My environment:

OS: Windows 10
python: 3.13.1


but I observed the same with:

OS: Windows 10
python: 3.12.7


and:

OS: Windows 10
python: 3.10.14


while I could not reproduce it in Linux Redhat.

I have this short script:

from multiprocessing import Queue

a = list(range(716))
queue: Queue = Queue()
for item in a:
queue.put(item)
raise ValueError(f"my len: {len(a)}")


If I run it, everything is ok, it raises the error and exits:

Traceback (most recent call last):
File "C:\Users\uXXXXXX\AppData\Roaming\JetBrains\PyCharmCE2024.3\scratches\scratch_1.py", line 7, in <module>
raise ValueError(f"my len: {len(a)}")
ValueError: my len: 716

Process finished with exit code 1


but if i change the number from 716 to 717 or any other number above it, it raises the error but doesn't exit, the script hangs there. and when I forcefully stop the script it exits with code -1

Traceback (most recent call last):
File "C:\Users\uXXXXXX\AppData\Roaming\JetBrains\PyCharmCE2024.3\scratches\scratch_1.py", line 7, in <module>
raise ValueError(f"my len: {len(a)}")
ValueError: my len: 717

Process finished with exit code -1


Can you please help me solve this strange behaviour? i would like it to always automatically exit with code 1

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