解决 'ModuleNotFoundError: No module named 'pkgutil'' 错误 - PyQt5 安装问题

The error message indicates that the Python interpreter is unable to find the 'pkgutil' module, which is required by the 'PyQt5' package.

To resolve this issue, you can try reinstalling the 'PyQt5' package using pip:

1. Open a command prompt or terminal window.

2. Type the following command and press Enter:

   pip install PyQt5

3. Wait for the installation to complete.

4. Try running your Python script again.

If the issue persists, you may need to check your Python environment and make sure that all required packages and dependencies are properly installed.