#!usr/bin/env python
# coding=utf-8
# Created by <EMAIL> on 2016/11/15.


class ValidationError(ValueError):
    pass

#!usr/bin/env python
# coding=utf-8
# Created by <EMAIL> on 2016/11/15.


class ValidationError(ValueError):
    pass

#!usr/bin/env python # coding=utf-8 # Created by <EMAIL> on 2016/11/15.