获取基类的当前子类

Question

I am trying to create custom representation of Exception following some rules. I want to create a base class which defines rules.

For example:

class MyBaseClassError(Exception):
    def __init__(self, blabla):
        super(MyBaseClassError, self).__init__(self)
        self.balbla = blabla
    def __str__(self):
        return "[{}]:{}".format(self.__subclasses()[0].__name__, self.blabla)

class ConfigFileError(MyBaseClassError):
    pass

So here it will return:

print ConfigFileError("Try again :D")
[ConfigParser]: Try again :D

I want to display the current subclass instead of self.__subclasses()[0].__name__ which is the first subclass list.

Answer 1

This will do it:

def __str__(self):
        return "[{}]:{}".format(self.__class__.__name__, self.blabla)