cpython/Lib/encodings/hex_codec.py at 3.13 · python/cpython · GitHub

Name: cpython/Lib/encodings/hex_codec.py at 3.13 · python/cpython · GitHub
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"""Python 'hex_codec' Codec - 2-digit hex content transfer encoding.

This codec de/encodes from bytes to bytes.

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

importcodecs
importbinascii

### Codec APIs

defhex_encode(input, errors='strict'):
asserterrors=='strict'
return (binascii.b2a_hex(input), len(input))

defhex_decode(input, errors='strict'):
asserterrors=='strict'
return (binascii.a2b_hex(input), len(input))

classCodec(codecs.Codec):
defencode(self, input, errors='strict'):
returnhex_encode(input, errors)
defdecode(self, input, errors='strict'):
returnhex_decode(input, errors)

classIncrementalEncoder(codecs.IncrementalEncoder):
defencode(self, input, final=False):
assertself.errors=='strict'
returnbinascii.b2a_hex(input)

classIncrementalDecoder(codecs.IncrementalDecoder):
defdecode(self, input, final=False):
assertself.errors=='strict'
returnbinascii.a2b_hex(input)

classStreamWriter(Codec, codecs.StreamWriter):
charbuffertype=bytes

classStreamReader(Codec, codecs.StreamReader):
charbuffertype=bytes

### encodings module API

defgetregentry():
returncodecs.CodecInfo(
name='hex',
encode=hex_encode,
decode=hex_decode,
incrementalencoder=IncrementalEncoder,
incrementaldecoder=IncrementalDecoder,
streamwriter=StreamWriter,
streamreader=StreamReader,
_is_text_encoding=False,
 )