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(python2.1-lib.info)Codec Base Classes

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Codec Base Classes
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The `codecs' defines a set of base classes which define the interface
and can also be used to easily write you own codecs for use in Python.

Each codec has to define four interfaces to make it usable as codec in
Python: stateless encoder, stateless decoder, stream reader and stream
writer. The stream reader and writers typically reuse the stateless
encoder/decoder to implement the file protocols.

The `Codec' class defines the interface for stateless encoders/decoders.

To simplify and standardize error handling, the `encode()' and
`decode()' methods may implement different error handling schemes by
providing the ERRORS string argument.  The following string values are
defined and implemented by all standard Python codecs:

Value                                Meaning
------                               -----
'strict'                             Raise `ValueError' (or a subclass);
                                     this is the default.
'ignore'                             Ignore the character and continue
                                     with the next.
'replace'                            Replace with a suitable replacement
                                     character; Python will use the
                                     official U+FFFD REPLACEMENT
                                     CHARACTER for the built-in Unicode
                                     codecs.

Codec Objects

StreamWriter Objects

StreamReader Objects

StreamReaderWriter Objects

StreamRecoder Objects