def dumpf(self, obj, fp: IOBase, options: dict):
'dump a obj into the file-like object.'
assert fp.writable()
if isinstance(fp, _TextIOBase):
fp.write(self.dumps(obj, options))
else:
fp.write(self.dumpb(obj, options))
def test_attributes_iobase(sio: io.IOBase) -> None:
"""Check basic attrs/descriptor functions related to being subclass of io.IOBase."""
assert sio is not None
assert isinstance(sio, io.IOBase)
assert isinstance(sio, io.RawIOBase)
assert not isinstance(sio, io.TextIOBase)
assert sio.readable() is True
assert sio.writable() is True
assert sio.seekable() is False
assert sio.isatty() is False
assert sio.closed() is False
def __init__(self, handle : io.IOBase, key : Union[Iterable[int], int, str, None]):
self._init_key(key)
self._handle = handle
self._size = 0
self._pos = 0
self._buffer = bytearray(8)
if handle.readable():
# Don't assert due to BriceIsSmart
handle.read(12)
self._size = self._readu32()
if handle.writable():
self._write_header()
def read_into_stream(self, stream: io.IOBase, *,
encoding=None, buffering: int = -1):
''' read all content into stream. '''
if not isinstance(stream, io.IOBase):
raise TypeError(type(stream))
if not stream.writable():
raise ValueError('stream is unable to write.')
if isinstance(stream, io.TextIOBase):
fp = self.open_for_read_text(encoding=encoding or 'utf-8')
else:
fp = self.open_for_read_bytes(buffering=buffering)
with fp as fsrc:
shutil.copyfileobj(fsrc, stream)
