importtimefromconcurrentimportinterpretersdefsub(mv:memoryview):time.sleep(1)print(mv[0])defmain():buf=bytearray(1)interp=interpreters.create()t=interp.call_in_thread(sub,memoryview(buf))mv[0]=1t.join()main()

Traceback (most recent call last):  File "/home/ran/test.py", line 15, in <module>    main()    ~~~~^^  File "/home/ran/test.py", line 12, in main    mv[0] = 1    ^^NameError: name 'mv' is not definedException in thread Thread-1 (_call):Exception: AttributeError: module '__main__' has no attribute 'sub'The above exception was the direct cause of the following exception:concurrent.interpreters.NotShareableError: object could not be unpickledThe above exception was the direct cause of the following exception:Traceback (most recent call last):  File "/home/ran/.local/share/uv/python/cpython-3.14.0b4-linux-x86_64-gnu/lib/python3.14/threading.py", line 1081, in _bootstrap_inner    self._context.run(self.run)    ~~~~~~~~~~~~~~~~~^^^^^^^^^^  File "/home/ran/.local/share/uv/python/cpython-3.14.0b4-linux-x86_64-gnu/lib/python3.14/threading.py", line 1023, in run    self._target(*self._args, **self._kwargs)    ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  File "/home/ran/.local/share/uv/python/cpython-3.14.0b4-linux-x86_64-gnu/lib/python3.14/concurrent/interpreters/__init__.py", line 215, in _call    res, excinfo = _interpreters.call(self._id, callable, args, kwargs, restrict=True)                   ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^concurrent.interpreters.NotShareableError: func not shareableException ignored while joining a thread in _thread._shutdown():Traceback (most recent call last):  File "/home/ran/.local/share/uv/python/cpython-3.14.0b4-linux-x86_64-gnu/lib/python3.14/threading.py", line 1582, in _shutdown    _thread_shutdown()PythonFinalizationError: cannot join thread at interpreter shutdownFatal Python error: Py_EndInterpreter: not the last threadPython runtime state: finalizing (tstate=0x0000000001b40a48)Current thread 0x00007f27ee43d780 [python3.14] (most recent call first):  <no Python frame>Thread 0x00007f27ecd8b6c0 [Thread-1 (_call] (most recent call first):  File "/home/ran/.local/share/uv/python/cpython-3.14.0b4-linux-x86_64-gnu/lib/python3.14/concurrent/interpreters/__init__.py", line 215 in _call  File "/home/ran/.local/share/uv/python/cpython-3.14.0b4-linux-x86_64-gnu/lib/python3.14/threading.py", line 1023 in run  File "/home/ran/.local/share/uv/python/cpython-3.14.0b4-linux-x86_64-gnu/lib/python3.14/threading.py", line 1081 in _bootstrap_inner  File "/home/ran/.local/share/uv/python/cpython-3.14.0b4-linux-x86_64-gnu/lib/python3.14/threading.py", line 1043 in _bootstrapAborted (core dumped)