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Streams and File Access — Apache Arrow v25.0.1

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Python
API Reference
Streams and File Access

Streams and File Access#

Factory Functions#

These factory functions are the recommended way to create a Arrow stream. They accept various kinds of sources, such as in-memory buffers or on-disk files.

`input_stream`(source[,compression,buffer_size])	Create an Arrow input stream.
`output_stream`(source[,compression,buffer_size])	Create an Arrow output stream.
`memory_map`(path[,mode])	Open memory map at file path.
`create_memory_map`(path,size)	Create a file of the given size and memory-map it.

Stream Classes#

`NativeFile`	The base class for all Arrow streams.
`OSFile`	A stream backed by a regular file descriptor.
`PythonFile`	A stream backed by a Python file object.
`BufferReader`(obj)	Zero-copy reader from objects convertible to Arrow buffer.
`BufferOutputStream`	An output stream that writes to a resizable buffer.
`FixedSizeBufferWriter`	A stream writing to a Arrow buffer.
`MemoryMappedFile`	A stream that represents a memory-mapped file.
`CompressedInputStream`(stream,strcompression)	An input stream wrapper which decompresses data on the fly.
`CompressedOutputStream`(stream,strcompression)	An output stream wrapper which compresses data on the fly.

File Systems#

See Filesystems.

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