| # This file is dual licensed under the terms of the Apache License, Version |
| # 2.0, and the BSD License. See the LICENSE file in the root of this repository |
| # for complete details. |
| from __future__ import absolute_import, division, print_function |
| |
| |
| class Infinity(object): |
| |
| def __repr__(self): |
| return "Infinity" |
| |
| def __hash__(self): |
| return hash(repr(self)) |
| |
| def __lt__(self, other): |
| return False |
| |
| def __le__(self, other): |
| return False |
| |
| def __eq__(self, other): |
| return isinstance(other, self.__class__) |
| |
| def __ne__(self, other): |
| return not isinstance(other, self.__class__) |
| |
| def __gt__(self, other): |
| return True |
| |
| def __ge__(self, other): |
| return True |
| |
| def __neg__(self): |
| return NegativeInfinity |
| |
| Infinity = Infinity() |
| |
| |
| class NegativeInfinity(object): |
| |
| def __repr__(self): |
| return "-Infinity" |
| |
| def __hash__(self): |
| return hash(repr(self)) |
| |
| def __lt__(self, other): |
| return True |
| |
| def __le__(self, other): |
| return True |
| |
| def __eq__(self, other): |
| return isinstance(other, self.__class__) |
| |
| def __ne__(self, other): |
| return not isinstance(other, self.__class__) |
| |
| def __gt__(self, other): |
| return False |
| |
| def __ge__(self, other): |
| return False |
| |
| def __neg__(self): |
| return Infinity |
| |
| NegativeInfinity = NegativeInfinity() |