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uio – Input/output streams

This module contains stream objects that behave like files.

class BytesIO(​)

class BytesIO(data)

class BytesIO(alloc_size)

A binary stream using an in-memory bytes buffer.

Parameters

• data (bytes or bytearray) – Optional bytes-like object that contains initial data.

• alloc_size (int) – Optional number of preallocated bytes. This parameter is unique to MicroPython. It is not recommended to use it in end-user code.

getvalue() → bytes

Gets the contents of the underlying buffer.

class StringIO(​)

class StringIO(string)

class StringIO(alloc_size)

A stream using an in-memory string buffer.

Parameters

• string (str) – Optional string with initial data.

• alloc_size (int) – Optional number of preallocated bytes. This parameter is unique to MicroPython. It is not recommended to use it in end-user code.

getvalue() → str

Gets the contents of the underlying buffer.

class FileIO

This type represents a file opened in binary mode with open(name, 'rb'). You should not instantiate this class directly.