为何tkinter与pynput组合在macOS上会导致Python崩溃？

问题背景 #

我正在开发一款基于CustomTkinter的Python宏功能应用，核心功能是通过pynput捕获按键。单独使用pynput捕获按键时功能正常，但下方的示例代码在Windows上运行无异常，在macOS上却会直接导致Python崩溃——涉及Intel和M2芯片、多个Python版本，以及Sonoma和Ventura系统。应用已获取macOS所需的辅助功能和输入监控权限。

触发崩溃的示例代码 #

import tkinter
import threading
from pynput import keyboard


class KeyRecorder:
    def __init__(self) -> None:
        self.listener = None
        self.callback = None
        self.macro = []

    def record(self, seconds, callback):
        self.callback = callback
        self.macro.clear()

        def on_press(key):
            self.macro.append(('press', key))
            return True

        def on_release(key):
            self.macro.append(('release', key))
            return True

        def end_recording():
            self.listener.stop()
            self.callback(self.macro)

        self.listener = keyboard.Listener(
            on_press=on_press, on_release=on_release)
        self.listener.start()

        timer = threading.Timer(seconds, end_recording)
        timer.start()

key_recorder = KeyRecorder()


def record():
    def handle_recording(keys):
        print(f"Callback called: {keys}")

    key_recorder.record(5, handle_recording)


app = tkinter.Tk()

button = tkinter.Button(command=record, text="Record")
button.pack(pady=20)

app.mainloop()

崩溃报告片段 #

Thread 8 Crashed:
0   libdispatch.dylib                      0x18876fd0c _dispatch_assert_queue_fail + 120
1   libdispatch.dylib                      0x18876fc94 dispatch_assert_queue + 196
2   HIToolbox                              0x192f50b08 islGetInputSourceListWithAdditions + 160
3   HIToolbox                              0x192f53144 isValidateInputSourceRef + 92
4   HIToolbox                              0x192f53004 TSMGetInputSourceProperty + 44
5   libffi.dylib                           0x1993ff050 ffi_call_SYSV + 80
6   libffi.dylib                           0x199407adc ffi_call_int + 1208
7   _ctypes.cpython-312-darwin.so          0x104f5f3c8 _ctypes_callproc + 1384
8   _ctypes.cpython-312-darwin.so          0x104f572c4 PyCFuncPtr_call + 212
9   Python                                 0x1023f4ecc _PyObject_MakeTpCall + 128
10  Python                                 0x1025663f0 _PyEval_EvalFrameDefault + 47712
11  Python                                 0x1024179e8 gen_send_ex2 + 196
12  Python                                 0x102415cc8 gen_iternext + 36
13  Python                                 0x102557bcc builtin_next + 76
14  Python                                 0x102463774 cfunction_vectorcall_FASTCALL + 96
15  Python                                 0x10256628c _PyEval_EvalFrameDefault + 47356
16  Python                                 0x1023f8fdc method_vectorcall + 368
17  Python                                 0x102565b3c _PyEval_EvalFrameDefault + 45484
18  Python                                 0x1023f8fdc method_vectorcall + 368
19  Python                                 0x10267da84 thread_run + 92
20  Python                                 0x1025ef8fc pythread_wrapper + 48
21  libsystem_pthread.dylib                0x18891b034 _pthread_start + 136
22  libsystem_pthread.dylib                0x188915e3c thread_start + 8

疑问 #

我在pynput的GitHub仓库找到了相关问题报告，但未能完全理解；Stack Overflow上也存在类似未解答的问题。我清楚非Tkinter主线程更新UI元素会引发问题，但这段代码里并没有此类操作。想确认：是代码本身存在问题，只是在Windows上侥幸运行？还是遇到了pynput、macOS或Python的底层bug？

内容的提问来源于stack exchange，提问作者Jason Luther