""" Python 'undefined' Codec

 This codec will always raise a ValueError exception when being
 used. It is intended for use by the site.py file to switch off
 automatic string to Unicode coercion.

Written by Marc-Andre Lemburg (mal@lemburg.com).

(c) Copyright CNRI, All Rights Reserved. NO WARRANTY.

"""
import codecs

### Codec APIs

class Codec(codecs.Codec):

 def encode(self,input,errors='strict'):
 raise UnicodeError("undefined encoding")

 def decode(self,input,errors='strict'):
 raise UnicodeError("undefined encoding")

class IncrementalEncoder(codecs.IncrementalEncoder):
 def encode(self, input, final=False):
 raise UnicodeError("undefined encoding")

class IncrementalDecoder(codecs.IncrementalDecoder):
 def decode(self, input, final=False):
 raise UnicodeError("undefined encoding")

class StreamWriter(Codec,codecs.StreamWriter):
 pass

class StreamReader(Codec,codecs.StreamReader):
 pass

### encodings module API

def getregentry():
 return codecs.CodecInfo(
 name='undefined',
 encode=Codec().encode,
 decode=Codec().decode,
 incrementalencoder=IncrementalEncoder,
 incrementaldecoder=IncrementalDecoder,
 streamwriter=StreamWriter,
 streamreader=StreamReader,
 )