| from __future__ import annotations | |
| import typing | |
| from typing import IO, TextIO | |
| class FalseMeta(type): | |
| def __bool__(cls) -> bool: # pragma: no cover | |
| return False | |
| def __cmp__(cls, other: typing.Any) -> int: # pragma: no cover | |
| return -1 | |
| __nonzero__ = __bool__ | |
| class UnknownLength(metaclass=FalseMeta): | |
| pass | |
| class Undefined(metaclass=FalseMeta): | |
| pass | |
| assert IO is not None | |
| assert TextIO is not None | |
| __all__ = ( | |
| 'FalseMeta', | |
| 'UnknownLength', | |
| 'Undefined', | |
| 'IO', | |
| 'TextIO', | |
| ) | |