What arguments does the built-in Exception class require?

问题

As a followup to my previous question, I was trying to create co-operative user defined exceptions that don't violate LSP.

I tried to search the PEPs and use PyCharm but I was unable to get a clear answer. I only found this PEP, but it talks about BaseException, the docs state if you want to create a user defined exception, use Exception.

What are the required arguments that should be passed to the Exception constructor without violating LSP?

class StudentValueError(Exception):
    """Base class exceptions for Student Values"""
    def __init__(self, *args):
        super().__init__(*args)


class MissingStudentValueError(StudentValueError):
    def __init__(self, expression = "", error_message = "", *args):
        super().__init__(*args)
        self.error_message = error_message 
        self.expression = expression # expression that raise the exception.

    def __str__(self):
        return "Message: {0} Parameters: {1}".format(self.error_message, self.expression)

来源：https://stackoverflow.com/questions/55213172/what-arguments-does-the-built-in-exception-class-require