JezK
Edit File: hex_codec.py
"""Python 'hex_codec' Codec - 2-digit hex content transfer encoding. This codec de/encodes from bytes to bytes and is therefore usable with bytes.transform() and bytes.untransform(). Written by Marc-Andre Lemburg (mal@lemburg.com). """ import codecs import binascii ### Codec APIs def hex_encode(input, errors='strict'): assert errors == 'strict' return (binascii.b2a_hex(input), len(input)) def hex_decode(input, errors='strict'): assert errors == 'strict' return (binascii.a2b_hex(input), len(input)) class Codec(codecs.Codec): def encode(self, input, errors='strict'): return hex_encode(input, errors) def decode(self, input, errors='strict'): return hex_decode(input, errors) class IncrementalEncoder(codecs.IncrementalEncoder): def encode(self, input, final=False): assert self.errors == 'strict' return binascii.b2a_hex(input) class IncrementalDecoder(codecs.IncrementalDecoder): def decode(self, input, final=False): assert self.errors == 'strict' return binascii.a2b_hex(input) class StreamWriter(Codec, codecs.StreamWriter): charbuffertype = bytes class StreamReader(Codec, codecs.StreamReader): charbuffertype = bytes ### encodings module API def getregentry(): return codecs.CodecInfo( name='hex', encode=hex_encode, decode=hex_decode, incrementalencoder=IncrementalEncoder, incrementaldecoder=IncrementalDecoder, streamwriter=StreamWriter, streamreader=StreamReader, )