EilerProject/task32.py at master · avenortoz/EilerProject · GitHub

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'''class ListInstance:
    def __str__(self):
                return '<Instance of %s, address %s:\n%s>' % (
                    self.__class__.__name__,
                    id(self),
                    self.__attrnames())

    def __attrnames(self):
        result = ''
        for attr in dir(self):  # Передать экземпляр функции dir()
            if attr[:2] == '__' and attr[-2:] == '__':  # Пропустить
                result += '\tname % s = <> \n' % attr  # внутренние имена
            else:
                result += '\tname % s = % s\n' % (attr, getattr(self, attr))
        return result


if __name__ == '__main__':
    class A1: ...

    class A2(A1, ListInstance): ...
    x = A2()
    print(x)
'''
class ListTree:
    def __str__(self):
        self.__visted = {}
        return '<Instanse of {0}, address {1}:\n{2}{3}>'.format(
            self.__class__.__name__,
            id(self),
            self.__attrnames(self, 0),
            self.__listclass(self.__class__, 4))

    def __attrnames(self, obj, indent):
        spaces = '' * (indent + 4)
        result = ''
        for attr in sorted(obj.__dict__):
            if attr.startswith('__') and attr.endswith('__'): ...
                #result += spaces + '{0} = <> \n'.format(attr)
            else:
                result += spaces + '{0} = {1}\n'.format(attr, getattr(obj, attr))
        return result

    def __listclass(self,aClass, indent):
        dots = '.' * indent
        if aClass in self.__visted:
            return '\n{0}<Class {1}:, address {2}: (see above)>\n'.format(
                dots,
                aClass.__name__,
                id(aClass))
        else:
            self.__visted[aClass] = True
            genabove = (self.__listclass(c, indent + 4) for c in aClass.__bases__)
            return '\n{0}<Class {1}, address {2}:\n{3}{4}{5}>\n'.format(
                dots,
                aClass.__name__,
                id(aClass),
                self.__attrnames(aClass, indent),
                '#'.join(genabove),
                dots)


if __name__ == '__main__':
    class A1: ...

    class A2(A1, ListTree): ...
    x = A2()
    print(x)