pycharm 使用QFontDatabase.addApplicationFont()时0xC0000005

我在使用PyQt 6（版本6.5.2）时使用了以下代码：

self.font_id = QFontDatabase.addApplicationFont('conf/font.otf')
self.font_family = QFontDatabase.applicationFontFamilies(font_id)

for name, classtype in self.__dict__.items():
    try:
        classtype.setFont(QFont(self.font_family[0], int(self.base_cfg['Config']['fontSize']), QFont.Weight.Bold))
    except AttributeError:
        pass

无论我在PyCharm中运行或调试程序，我总是得到消息“Process finished with exit code -1073741819（0xC 0000005）"。但是当我注解掉代码的前两行时，程序正常运行。
经过多次尝试，我现在确信**QFontDatabase.addApplicationFont（'conf/font. otf'）**本身对我来说是最小的可复制示例。即使我只执行这两行，脚本也会崩溃：

from PyQt6.QtGui import QFontDatabase
QFontDatabase.addApplicationFont('conf/font.otf')

我已经在Python 3.9.4/3.10.2/3.11.4上测试过了，情况仍然是一样的。我使用的是Windows 11版本22621.2070。我已经搜索了相关信息，但还没有找到任何有用的东西。
我在PyCharm Run/编译器中尝试了**-X dev**解释器选项，得到了如下结果：

Windows fatal exception: access violation

Thread 0x00002a00 (most recent call first):
  File "D:\Software\PyCharm Community Edition 2023.2\plugins\python-ce\helpers\pydev\pydevd.py", line 138 in _on_run
  File "D:\Software\PyCharm Community Edition 2023.2\plugins\python-ce\helpers\pydev\_pydevd_bundle\pydevd_comm.py", line 219 in run
  File "D:\Software\Python\lib\threading.py", line 1009 in _bootstrap_inner
  File "D:\Software\Python\lib\threading.py", line 966 in _bootstrap

Thread 0x00004cd4 (most recent call first):
  File "D:\Software\PyCharm Community Edition 2023.2\plugins\python-ce\helpers\pydev\_pydevd_bundle\pydevd_comm.py", line 293 in _on_run
  File "D:\Software\PyCharm Community Edition 2023.2\plugins\python-ce\helpers\pydev\_pydevd_bundle\pydevd_comm.py", line 219 in run
  File "D:\Software\Python\lib\threading.py", line 1009 in _bootstrap_inner
  File "D:\Software\Python\lib\threading.py", line 966 in _bootstrap

Thread 0x00004728 (most recent call first):
  File "D:\Software\Python\lib\threading.py", line 324 in wait
  File "D:\Software\Python\lib\queue.py", line 180 in get
  File "D:\Software\PyCharm Community Edition 2023.2\plugins\python-ce\helpers\pydev\_pydevd_bundle\pydevd_comm.py", line 368 in _on_run
  File "D:\Software\PyCharm Community Edition 2023.2\plugins\python-ce\helpers\pydev\_pydevd_bundle\pydevd_comm.py", line 219 in run
  File "D:\Software\Python\lib\threading.py", line 1009 in _bootstrap_inner
  File "D:\Software\Python\lib\threading.py", line 966 in _bootstrap

有人能帮我吗？

感谢@musicamante的提醒：
顾名思义，addApplicationFont()向应用程序添加字体，但您根本没有创建任何应用程序。在调用addApplicationFont()之前，至少要创建一个QApplication示例。
我确实犯了一个错误。问题是这样发生的：
我的应用程序窗口gui.py的结构如下所示：

from PyQt6.XXX import XXX

class MyMainWindow(QMainWindow):
    font_id = QFontDatabase.addApplicationFont('conf/font.otf')
    font_family = QFontDatabase.applicationFontFamilies(font_id)
    
    def __init__(self):
        # some init process

def main():
    app = QApplication(sys.argv)
    _ = MyMainWindow()
    sys.exit(app.exec())

if __name__ == '__main':
    main()

然后，在我的应用程序的主要入口：

import gui

gui.main()

在整个过程中，addApplicationFont()在**app = QApplication(sys.argv)之前执行**。将这两行移动到__init__()部分后，一切都变得正常：

class MyMainWindow(QMainWindow):
    
    def __init__(self):
        # some init process
        self.font_id = QFontDatabase.addApplicationFont('conf/font.otf')
        self.font_family = QFontDatabase.applicationFontFamilies(font_id)

pycharm 使用QFontDatabase.addApplicationFont()时0xC0000005

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