Backport on 3.13.3 Hangs

[pprados]

I was looking to try the backports on 3.13.3 on Windows and WSL. I've tried both pypi version and main and 0.6.0.

In all cases, it just hangs after .submit()
The code never print and end.

from interpreters_backport.concurrent.futures.interpreter import InterpreterPoolExecutor

def my_func():
    return 1+2

with InterpreterPoolExecutor() as executor:
    future = executor.submit(my_func)

print(future.result())