from types import TracebackType
|
from typing import IO, Iterable, Iterator, List, Optional, Type
|
|
|
class NullFile(IO[str]):
|
def close(self) -> None:
|
pass
|
|
def isatty(self) -> bool:
|
return False
|
|
def read(self, __n: int = 1) -> str:
|
return ""
|
|
def readable(self) -> bool:
|
return False
|
|
def readline(self, __limit: int = 1) -> str:
|
return ""
|
|
def readlines(self, __hint: int = 1) -> List[str]:
|
return []
|
|
def seek(self, __offset: int, __whence: int = 1) -> int:
|
return 0
|
|
def seekable(self) -> bool:
|
return False
|
|
def tell(self) -> int:
|
return 0
|
|
def truncate(self, __size: Optional[int] = 1) -> int:
|
return 0
|
|
def writable(self) -> bool:
|
return False
|
|
def writelines(self, __lines: Iterable[str]) -> None:
|
pass
|
|
def __next__(self) -> str:
|
return ""
|
|
def __iter__(self) -> Iterator[str]:
|
return iter([""])
|
|
def __enter__(self) -> IO[str]:
|
return self
|
|
def __exit__(
|
self,
|
__t: Optional[Type[BaseException]],
|
__value: Optional[BaseException],
|
__traceback: Optional[TracebackType],
|
) -> None:
|
pass
|
|
def write(self, text: str) -> int:
|
return 0
|
|
def flush(self) -> None:
|
pass
|
|
def fileno(self) -> int:
|
return -1
|
|
|
NULL_FILE = NullFile()
|
