Can pytest show all arguments of exception that unintentionally occured?

I have got Exception class looking like that:

class MutationValidationError(ValidationError):
    def __init__(self, error_dict=None):
        if error_dict is None:
            error_dict = ErrorDict()
        self.error_dict = error_dict
        super().__init__(msg='Failed to run mutation')

This Error is raised during test in a place where it shouldn’t. But for purpose of debugging it is crucial for me to see the contents of error_dict. Unfortunatelly it isn’t visible in test output. Can I make it visible without using try…catch clause?

[asottile]

oh I see, didn’t notice you were overriding __str__ (which would hide the value there)

[jacek-jablonski]

Thanks @asottile. Without str all arguments of Exception are visible.