utils.py 文件源码

def enable_pyqt_exception_hook():
    """Enable the PyQt exception handling hook for PyQt versions larger than 5.5.

    If this is not enabled, exceptions will be handled silently and will not be printed to the user. This
    makes it harder to solve the issue.
    """
    if QtCore.QT_VERSION >= 0x50501:
        old_stdout = sys.stdout
        old_stderr = sys.stderr

        def excepthook(type_, value, traceback_):
            sys.stdout = old_stdout
            sys.stderr = old_stderr
            traceback.print_exception(type_, value, traceback_)
            QtCore.qFatal('')
        sys.excepthook = excepthook