b2sdk.stream.range RangeOfInputStream

class b2sdk.stream.range.RangeOfInputStream(stream, offset, length)

Bases: b2sdk.stream.base.ReadOnlyStreamMixin, b2sdk.stream.wrapper.StreamWithLengthWrapper

Wrap a file-like object (read only) and read the selected range of the file.

__init__(stream, offset, length)

Parameters

• stream – a seekable stream

• offset (int) – offset in the stream

• length (int) – max number of bytes to read

seek(pos, whence=0)

Seek to a given position in the stream.

Parameters

pos (int) – position in the stream relative to steam offset

Returns

new position relative to stream offset

Return type

int

tell()

Return current stream position relative to offset.

Return type

int

read(size=None)

Read data from the stream.

Parameters

size (int) – number of bytes to read

Returns

data read from the stream

Return type

bytes

close()

Flush and close the IO object.

This method has no effect if the file is already closed.

b2sdk.stream.range.wrap_with_range(stream, stream_length, range_offset, range_length)