text: """The io module provides the Python interfaces to stream handling. The
  builtin open function is defined in this module.
  
  At the top of the I/O hierarchy is the abstract base class IOBase. It
  defines the basic interface to a stream. Note, however, that there is no
  separation between reading and writing to streams; implementations are
  allowed to throw an IOError if they do not support a given operation.
  
  Extending IOBase is RawIOBase which deals simply with the reading and
  writing of raw bytes to a stream. FileIO subclasses RawIOBase to provide
  an interface to OS files.
  
  BufferedIOBase deals with buffering on a raw byte stream (RawIOBase). Its
  subclasses, BufferedWriter, BufferedReader, and BufferedRWPair buffer
  streams that are readable, writable, and both respectively.
  BufferedRandom provides a buffered interface to random access
  streams. BytesIO is a simple stream of in-memory bytes.
  
  Another IOBase subclass, TextIOBase, deals with the encoding and decoding
  of streams into text. TextIOWrapper, which extends it, is a buffered text
  interface to a buffered raw stream (`BufferedIOBase`). Finally, StringIO
  is a in-memory stream for text.
  
  Argument names are not part of the specification, and only the arguments
  of open() are intended to be used as keyword arguments.
  
  data:
  
  DEFAULT_BUFFER_SIZE
  
     An int containing the default buffer size used by the module's buffered
     I/O classes. open() uses the file's blksize (as obtained by os.stat) if
     possible.
  """
  # New I/O library conforming to PEP 3116.
  
  __author__ = ("Guido van Rossum <guido@python.org>, "
                "Mike Verdone <mike.verdone@gmail.com>, "
                "Mark Russell <mark.russell@zen.co.uk>, "
                "Antoine Pitrou <solipsis@pitrou.net>, "
                "Amaury Forgeot d'Arc <amauryfa@gmail.com>, "
                "Benjamin Peterson <benjamin@python.org>")
  
  __all__ = ["BlockingIOError", "open", "IOBase", "RawIOBase", "FileIO",
             "BytesIO", "StringIO", "BufferedIOBase",
             "BufferedReader", "BufferedWriter", "BufferedRWPair",
             "BufferedRandom", "TextIOBase", "TextIOWrapper",
             "UnsupportedOperation", "SEEK_SET", "SEEK_CUR", "SEEK_END"]
  
  
  import _io
  import abc
  
  from _io import (DEFAULT_BUFFER_SIZE, BlockingIOError, UnsupportedOperation,
                   open, FileIO, BytesIO, StringIO, BufferedReader,
                   BufferedWriter, BufferedRWPair, BufferedRandom,
                   IncrementalNewlineDecoder, TextIOWrapper)
  
  OpenWrapper = _io.open # for compatibility with _pyio
  
  # for seek()
  SEEK_SET = 0
  SEEK_CUR = 1
  SEEK_END = 2
  
  # Declaring ABCs in C is tricky so we do it here.
  # Method descriptions and default implementations are inherited from the C
  # version however.
  class IOBase(_io._IOBase):
      __metaclass__ = abc.ABCMeta
  
  class RawIOBase(_io._RawIOBase, IOBase):
      pass
  
  class BufferedIOBase(_io._BufferedIOBase, IOBase):
      pass
  
  class TextIOBase(_io._TextIOBase, IOBase):
      pass
  
  RawIOBase.register(FileIO)
  
  for klass in (BytesIO, BufferedReader, BufferedWriter, BufferedRandom,
                BufferedRWPair):
      BufferedIOBase.register(klass)
  
  for klass in (StringIO, TextIOWrapper):
      TextIOBase.register(klass)
  del klass
  